SPF Check:
spf.msm.mit.edu

1. Specify domain name

Enter a domain to be checked for the SPF record
2. Specify IP address (optional)
Enter any IP address to check if it is authorized to send e-mails by the SPF record

What is the SPF lookup for?

With the SPF lookup you analyze the SPF record of a domain for errors, security risks and authorized IP addresses. Optionally, you can specify an IP address to check if it is authorized to send e-mail on behalf of the domain. The SPF lookup analyzes registered TXT records in real time. If you want to specify an SPF record manually, use the SPF Analyzer.

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SPF check failed

Your SPF record check result
  •   SPF record found
  •   Syntax check: 7 Error
  •   Email Spoofing Protection: Poor
Warning: Compliance breach for email deliverability & security

The domain spf.msm.mit.edu does not fulfil the requirements for optimal deliverability to Google, Yahoo and other email service providers.

Mandatory IT baseline protection measures for email security are not fulfilled. There are risks of email misuse.

Summary of the SPF check

Does a valid SPF record exist?
An SPF record was found for the domain spf.msm.mit.edu.
The SPF record for spf.msm.mit.edu is not valid.
The syntax check resulted in a total of 7 errors.
of the email -Spoofing protection for this domain is not or not sufficiently provided.

Which IP-s are legitimate to send emails?
The SPF record contains a reference to external rules, which means that the validity of the SPF record depends on at least one other domain. A detailed list of the rules used externally can be found in the analysis result. In total, 230 IP address(es) were authorized by the SPF record to send emails. 101 of these are not taken into account by the Mail Transfer Agent evaluation and are not authorized to send emails on behalf of the domain.

The SPF record analysis was performed on 31.10.2024 at 04:37:06 clock.

Lookup for the domain:
spf.msm.mit.edu
IP address to be checked:
no IP address specified

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Evaluation for the domain spf.msm.mit.edu 

Nameserverset:
asia2.akam.net
usw2.akam.net
asia1.akam.net
use2.akam.net
ns1-37.akam.net
ns1-173.akam.net
eur5.akam.net
use5.akam.net
Determined SPF record:
Legitimated IP addresses:
IP Provider / ASN DNSBL-Check
18.4.70.168/32
MIT-GATEWAYS blacklist 
18.4.70.171/32
MIT-GATEWAYS blacklist 
18.4.70.107/32
MIT-GATEWAYS blacklist 
18.4.70.108/32
MIT-GATEWAYS blacklist 
18.4.38.211/32
MIT-GATEWAYS blacklist 
18.4.38.212/32
MIT-GATEWAYS blacklist 
18.7.35.0/24
MIT-GATEWAYS blacklist 
69.63.150.0/24
EDGE-HOSTING blacklist 
69.63.151.0/24
EDGE-HOSTING blacklist 
35.190.247.0/24
GOOGLE-CLOUD-PLATFORM blacklist 
64.233.160.0/19
GOOGLE blacklist 
66.102.0.0/20
GOOGLE blacklist 
66.249.80.0/20
GOOGLE blacklist 
72.14.192.0/18
GOOGLE blacklist 
74.125.0.0/16
GOOGLE blacklist 
108.177.8.0/21
GOOGLE blacklist 
173.194.0.0/16
GOOGLE blacklist 
209.85.128.0/17
GOOGLE blacklist 
216.58.192.0/19
GOOGLE blacklist 
216.239.32.0/19
GOOGLE blacklist 
2001:4860:4000::/36
GOOGLE blacklist 
2404:6800:4000::/36
GOOGLE blacklist 
2607:f8b0:4000::/36
GOOGLE blacklist 
2800:3f0:4000::/36
GOOGLE blacklist 
2a00:1450:4000::/36
GOOGLE blacklist 
2c0f:fb50:4000::/36
GOOGLE blacklist 
172.217.0.0/19
GOOGLE blacklist 
172.217.32.0/20
GOOGLE blacklist 
172.217.128.0/19
GOOGLE blacklist 
172.217.160.0/20
GOOGLE blacklist 
172.217.192.0/19
GOOGLE blacklist 
172.253.56.0/21
GOOGLE blacklist 
172.253.112.0/20
GOOGLE blacklist 
108.177.96.0/19
GOOGLE blacklist 
35.191.0.0/16
GOOGLE blacklist 
130.211.0.0/22
GOOGLE-CLOUD-PLATFORM blacklist 
139.60.0.0/22
AMAZON-AES blacklist 
34.197.57.115/32
AMAZON-AES blacklist 
34.197.58.165/32
AMAZON-AES blacklist 
3.99.6.92 AMAZON-02 blacklist 
69.72.41.2 MAILGUN blacklist 
52.42.20.3 AMAZON-02 blacklist 
62.23.85.10 COLT Technology Services Group Limited blacklist 
18.9.1.0/24
MIT-GATEWAYS blacklist 
54.88.39.81 AMAZON-AES blacklist 
69.72.41.28 MAILGUN blacklist 
52.101.10.8 MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
52.101.42.9 MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
52.101.8.36 MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
207.54.75.14 AS-CISCOHPS-APAC blacklist 
207.54.75.15 AS-CISCOHPS-APAC blacklist 
207.54.75.16 AS-CISCOHPS-APAC blacklist 
142.0.177.24 SRS-6-Z-7381 blacklist 
142.0.187.58 RACKSPACE blacklist 
18.7.16.0/24
MIT-GATEWAYS blacklist 
18.7.21.0/24
MIT-GATEWAYS blacklist 
18.7.34.0/24
MIT-GATEWAYS blacklist 
18.7.62.0/24
MIT-GATEWAYS blacklist 
18.7.68.0/24
MIT-GATEWAYS blacklist 
18.7.71.0/24
MIT-GATEWAYS blacklist 
18.9.21.0/24
MIT-GATEWAYS blacklist 
18.9.25.0/24
MIT-GATEWAYS blacklist 
18.9.28.0/24
MIT-GATEWAYS blacklist 
64.128.67.16 LVLT-3549 blacklist 
64.128.67.20 LVLT-3549 blacklist 
72.55.140.81 IWEB-AS blacklist 
69.72.32.253 MAILGUN blacklist 
69.72.47.188 MAILGUN blacklist 
69.72.34.120 MAILGUN blacklist 
69.72.45.120 MAILGUN blacklist 
12.228.6.215 FTMS-01 blacklist 
52.45.50.190 AMAZON-AES blacklist 
52.31.29.196 AMAZON-02 blacklist 
52.60.142.64 AMAZON-02 blacklist 
13.237.94.13 AMAZON-02 blacklist 
54.66.240.63 AMAZON-02 blacklist 
40.92.0.0/15
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
52.5.134.202 AMAZON-AES blacklist 
52.101.41.26 MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
207.54.83.136 AS-CISCOHPS-APAC blacklist 
207.54.83.137 AS-CISCOHPS-APAC blacklist 
207.54.83.138 AS-CISCOHPS-APAC blacklist 
69.20.119.219 RACKSPACE blacklist 
63.32.240.193 AMAZON-02 blacklist 
52.19.113.120 AMAZON-02 blacklist 
66.102.0.0/20
GOOGLE blacklist 
74.125.0.0/16
GOOGLE blacklist 
35.191.0.0/16
GOOGLE blacklist 
129.41.172.95 AMAZON-AES blacklist 
139.60.0.0/22
AMAZON-AES blacklist 
165.192.56.56 - blacklist 
165.193.56.42 CENTURYLINK-LEGACY-SAVVIS blacklist 
74.112.65.118 AMAZON-AES blacklist 
13.111.0.0/16
SALESFORCE blacklist 
143.55.237.88 Mailjet SAS blacklist 
167.89.0.0/17
SENDGRID blacklist 
50.31.32.0/19
SENDGRID blacklist 
198.21.0.0/21
SENDGRID blacklist 
149.72.0.0/16
AMAZON-AES blacklist 
52.76.190.252 AMAZON-02 blacklist 
3.218.253.173 AMAZON-AES blacklist 
35.160.78.215 AMAZON-02 blacklist 
54.195.228.99 AMAZON-02 blacklist 
40.107.0.0/16
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
52.100.0.0/15
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
52.102.0.0/16
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
52.103.0.0/17
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
104.47.0.0/17
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
34.251.228.195 AMAZON-02 blacklist 
142.0.176.0/20
SRS-6-Z-7381 blacklist 
69.48.230.0/25
UNITAS blacklist 
66.249.80.0/20
GOOGLE blacklist 
72.14.192.0/18
GOOGLE blacklist 
108.177.8.0/21
GOOGLE blacklist 
173.194.0.0/16
GOOGLE blacklist 
172.217.0.0/19
GOOGLE blacklist 
130.211.0.0/22
GOOGLE-CLOUD-PLATFORM blacklist 
37.59.249.0/24
OVH SAS blacklist 
69.25.199.0/24
INTERNAP-BLOCK-4 blacklist 
87.253.236.214 Mailjet SAS blacklist 
148.105.0.0/16
THEROCKETSCIENCEGROUP blacklist 
178.33.111.144 OVH SAS blacklist 
198.2.128.0/18
THEROCKETSCIENCEGROUP blacklist 
205.217.12.155 CENTURYLINK-LEGACY-SAVVIS blacklist 
205.217.12.177 CENTURYLINK-LEGACY-SAVVIS blacklist 
159.183.195.16 SENDGRID blacklist 
143.55.237.127 Mailjet SAS blacklist 
143.55.237.162 Mailjet SAS blacklist 
143.55.237.120 Mailjet SAS blacklist 
185.12.80.0/22
- blacklist 
216.198.0.0/18
AMAZON-02 blacklist 
168.245.0.0/17
SENDGRID blacklist 
159.183.0.0/16
SENDGRID blacklist 
13.215.187.237 AMAZON-02 blacklist 
20.96.12.43/32
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
20.1.130.13/32
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
35.190.247.0/24
GOOGLE-CLOUD-PLATFORM blacklist 
64.233.160.0/19
GOOGLE blacklist 
209.85.128.0/17
GOOGLE blacklist 
216.58.192.0/19
GOOGLE blacklist 
216.239.32.0/19
GOOGLE blacklist 
172.217.32.0/20
GOOGLE blacklist 
172.253.56.0/21
GOOGLE blacklist 
108.177.96.0/19
GOOGLE blacklist 
37.59.69.128/25
OVH SAS blacklist 
75.98.95.161/27
INTERNAP-2BLK blacklist 
87.253.232.0/21
Mailjet SAS blacklist 
96.43.144.64/31
SALESFORCE blacklist 
96.43.148.64/31
SALESFORCE blacklist 
128.136.37.0/24
PDS-DC1 blacklist 
165.193.101.141 CENTURYLINK-LEGACY-SAVVIS blacklist 
165.193.101.142 CENTURYLINK-LEGACY-SAVVIS blacklist 
178.33.221.0/24
OVH SAS blacklist 
182.50.78.64/28
SALESFORCE blacklist 
184.173.153.216 - blacklist 
198.187.196.100 TIS-DC1 blacklist 
198.187.196.130 TIS-DC1 blacklist 
198.245.81.0/24
SALESFORCE blacklist 
159.135.226.248 MAILGUN blacklist 
159.135.233.165 MAILGUN blacklist 
12.228.6.215/32
FTMS-01 blacklist 
208.117.48.0/20
SENDGRID blacklist 
198.37.144.0/20
SENDGRID blacklist 
20.1.128.197/32
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
20.10.24.226/32
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
69.20.119.216/29
RACKSPACE blacklist 
76.12.109.192/27
LNH-INC blacklist 
67.59.141.128/28
LNH-INC blacklist 
172.217.128.0/19
GOOGLE blacklist 
172.217.160.0/20
GOOGLE blacklist 
172.217.192.0/19
GOOGLE blacklist 
172.253.112.0/20
GOOGLE blacklist 
74.62.122.128/25
TWC-11427-TEXAS blacklist 
139.146.160.0/25
LIGHTEDGE-AS-02 blacklist 
185.189.236.0/22
Mailjet SAS blacklist 
185.211.120.0/22
Mailjet SAS blacklist 
204.14.232.64/28
SALESFORCE blacklist 
204.14.234.64/28
SALESFORCE blacklist 
205.201.128.0/20
THEROCKETSCIENCEGROUP blacklist 
205.237.106.0/24
SYNOPTEK blacklist 
136.147.176.0/24
SALESFORCE blacklist 
136.147.182.0/24
SALESFORCE blacklist 
136.147.135.0/24
SALESFORCE blacklist 
199.122.123.0/24
SALESFORCE blacklist 
103.151.192.0/23
AMAZON-02 blacklist 
188.172.128.0/20
- blacklist 
192.161.144.0/20
- blacklist 
192.254.112.0/20
SENDGRID blacklist 
223.165.113.0/24
SENDGRID blacklist 
223.165.115.0/24
SENDGRID blacklist 
223.165.118.0/23
SENDGRID blacklist 
223.165.120.0/23
SENDGRID blacklist 
70.42.227.151/32
ASN-INTERNAP-BLK blacklist 
70.42.227.152/32
ASN-INTERNAP-BLK blacklist 
20.114.186.35/32
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
209.41.176.224/28
LNH-INC blacklist 
178.33.137.208/28
OVH SAS blacklist 
20.119.174.191/32
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
20.230.106.230/32
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
20.119.207.133/32
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
204.232.162.112/28
RACKSPACE blacklist 
204.232.180.112/29
RACKSPACE blacklist 
204.232.180.128/29
RACKSPACE blacklist 
2800:3f0:4000::/36
GOOGLE blacklist 
139.146.146.128/25
LIGHTEDGE-AS-02 blacklist 
2a01:111:f400::/48
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
2a01:111:f403::/49
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
2001:4860:4000::/36
GOOGLE blacklist 
2404:6800:4000::/36
GOOGLE blacklist 
2607:f8b0:4000::/36
GOOGLE blacklist 
2a00:1450:4000::/36
GOOGLE blacklist 
2c0f:fb50:4000::/36
GOOGLE blacklist 
2a01:111:f403:8000::/51
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
2a01:111:f403:c000::/51
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
2a01:111:f403:f000::/52
MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
162.247.216.0/22
QUALTRICS-01 blacklist 
139.60.152.0/22
QUALTRICS-01 blacklist 
98.97.248.0/21
AMAZON-02 blacklist 
64.69.212.0/24
AMAZON-02 blacklist 
54.186.193.102/32
AMAZON-02 blacklist 
52.222.73.120/32
AMAZON-02 blacklist 
52.222.73.83 AMAZON-02 blacklist 
52.222.62.51 AMAZON-02 blacklist 
52.222.75.85 AMAZON-02 blacklist 
52.222.89.228 AMAZON-02 blacklist 
160.1.62.192 AMAZON-02 blacklist 
52.61.91.9 AMAZON-02 blacklist 
15.200.21.50 AMAZON-02 blacklist 
15.200.201.185 AMAZON-02 blacklist 
15.200.44.248 AMAZON-02 blacklist 
SPF-Syntax Check:
Analysis result of the SPF record for the domain: spf.msm.mit.edu

SPF record available?

We found an SPF record for the domain.

v=spf1

Additionally authorized IPv4 addresses

Explicit IPv4 addresses in the SPF record have been authorized to send

18.4.70.168/32
18.4.70.171/32
18.4.70.107/32
18.4.70.108/32
18.4.38.211/32
18.4.38.212/32
18.7.35.0/24
69.63.150.0/24
69.63.151.0/24

Additional external SPF records

We could find other records authorized in the SPF record

include:_spf.google.com
v=spf1 include:_netblocks.google.com include:_netblocks2.google.com include:_netblocks3.google.com ~all
include:_netblocks.google.com
v=spf1 ip4:35.190.247.0/24 ip4:64.233.160.0/19 ip4:66.102.0.0/20 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:74.125.0.0/16 ip4:108.177.8.0/21 ip4:173.194.0.0/16 ip4:209.85.128.0/17 ip4:216.58.192.0/19 ip4:216.239.32.0/19 ~all
ipv4:
35.190.247.0/24
ipv4:
64.233.160.0/19
ipv4:
66.102.0.0/20
ipv4:
66.249.80.0/20
ipv4:
72.14.192.0/18
ipv4:
74.125.0.0/16
ipv4:
108.177.8.0/21
ipv4:
173.194.0.0/16
ipv4:
209.85.128.0/17
ipv4:
216.58.192.0/19
ipv4:
216.239.32.0/19
include:_netblocks2.google.com
v=spf1 ip6:2001:4860:4000::/36 ip6:2404:6800:4000::/36 ip6:2607:f8b0:4000::/36 ip6:2800:3f0:4000::/36 ip6:2a00:1450:4000::/36 ip6:2c0f:fb50:4000::/36 ~all
ipv6:
2001:4860:4000::/36
ipv6:
2404:6800:4000::/36
ipv6:
2607:f8b0:4000::/36
ipv6:
2800:3f0:4000::/36
ipv6:
2a00:1450:4000::/36
ipv6:
2c0f:fb50:4000::/36
include:_netblocks3.google.com
v=spf1 ip4:172.217.0.0/19 ip4:172.217.32.0/20 ip4:172.217.128.0/19 ip4:172.217.160.0/20 ip4:172.217.192.0/19 ip4:172.253.56.0/21 ip4:172.253.112.0/20 ip4:108.177.96.0/19 ip4:35.191.0.0/16 ip4:130.211.0.0/22 ~all
ipv4:
172.217.0.0/19
ipv4:
172.217.32.0/20
ipv4:
172.217.128.0/19
ipv4:
172.217.160.0/20
ipv4:
172.217.192.0/19
ipv4:
172.253.56.0/21
ipv4:
172.253.112.0/20
ipv4:
108.177.96.0/19
ipv4:
35.191.0.0/16
ipv4:
130.211.0.0/22
include:spf1.msm.mit.edu
v=spf1 ip4:139.60.0.0/22 ip4:34.197.57.115/32 ip4:34.197.58.165/32 include:mit.edu include:_spf.qualtrics.com ~all
ipv4:
139.60.0.0/22
ipv4:
34.197.57.115/32
ipv4:
34.197.58.165/32
include:mit.edu
v=spf1 include:_s00430413.autospf.email -all
include:_s00430413.autospf.email
v=spf1 ip4:3.99.6.92 ip4:69.72.41.2 ip4:52.42.20.3 ip4:62.23.85.10 ip4:18.9.1.0/24 ip4:54.88.39.81 ip4:69.72.41.28 ip4:52.101.10.8 ip4:52.101.42.9 ip4:52.101.8.36 ip4:207.54.75.14 ip4:207.54.75.15 ip4:207.54.75.16 ip4:142.0.177.24 ip4:142.0.187.58 ip4:18.7.16.0/24 ip4:18.7.21.0/24 ip4:18.7.34.0/24 ip4:18.7.62.0/24 ip4:18.7.68.0/24 ip4:18.7.71.0/24 ip4:18.9.21.0/24 ip4:18.9.25.0/24 ip4:18.9.28.0/24 include:_s004304130.autospf.email -all
ipv4:
3.99.6.92
ipv4:
69.72.41.2
ipv4:
52.42.20.3
ipv4:
62.23.85.10
ipv4:
18.9.1.0/24
ipv4:
54.88.39.81
ipv4:
69.72.41.28
ipv4:
52.101.10.8
ipv4:
52.101.42.9
ipv4:
52.101.8.36
ipv4:
207.54.75.14
ipv4:
207.54.75.15
ipv4:
207.54.75.16
ipv4:
142.0.177.24
ipv4:
142.0.187.58
ipv4:
18.7.16.0/24
ipv4:
18.7.21.0/24
ipv4:
18.7.34.0/24
ipv4:
18.7.62.0/24
ipv4:
18.7.68.0/24
ipv4:
18.7.71.0/24
ipv4:
18.9.21.0/24
ipv4:
18.9.25.0/24
ipv4:
18.9.28.0/24
include:_s004304130.autospf.email
v=spf1 ip4:64.128.67.16 ip4:64.128.67.20 ip4:72.55.140.81 ip4:69.72.32.253 ip4:69.72.47.188 ip4:69.72.34.120 ip4:69.72.45.120 ip4:12.228.6.215 ip4:52.45.50.190 ip4:52.31.29.196 ip4:52.60.142.64 ip4:13.237.94.13 ip4:54.66.240.63 ip4:40.92.0.0/15 ip4:52.5.134.202 ip4:52.101.41.26 ip4:207.54.83.136 ip4:207.54.83.137 ip4:207.54.83.138 ip4:69.20.119.219 ip4:63.32.240.193 ip4:52.19.113.120 ip4:66.102.0.0/20 include:_s004304131.autospf.email -all
ipv4:
64.128.67.16
ipv4:
64.128.67.20
ipv4:
72.55.140.81
ipv4:
69.72.32.253
ipv4:
69.72.47.188
ipv4:
69.72.34.120
ipv4:
69.72.45.120
ipv4:
12.228.6.215
ipv4:
52.45.50.190
ipv4:
52.31.29.196
ipv4:
52.60.142.64
ipv4:
13.237.94.13
ipv4:
54.66.240.63
ipv4:
40.92.0.0/15
ipv4:
52.5.134.202
ipv4:
52.101.41.26
ipv4:
207.54.83.136
ipv4:
207.54.83.137
ipv4:
207.54.83.138
ipv4:
69.20.119.219
ipv4:
63.32.240.193
ipv4:
52.19.113.120
ipv4:
66.102.0.0/20
include:_s004304131.autospf.email
v=spf1 ip4:74.125.0.0/16 ip4:35.191.0.0/16 ip4:129.41.172.95 ip4:139.60.0.0/22 ip4:165.192.56.56 ip4:165.193.56.42 ip4:74.112.65.118 ip4:13.111.0.0/16 ip4:143.55.237.88 ip4:167.89.0.0/17 ip4:50.31.32.0/19 ip4:198.21.0.0/21 ip4:149.72.0.0/16 ip4:52.76.190.252 ip4:3.218.253.173 ip4:35.160.78.215 ip4:54.195.228.99 ip4:40.107.0.0/16 ip4:52.100.0.0/15 ip4:52.102.0.0/16 ip4:52.103.0.0/17 ip4:104.47.0.0/17 include:_s004304132.autospf.email -all
ipv4:
74.125.0.0/16
ipv4:
35.191.0.0/16
ipv4:
129.41.172.95
ipv4:
139.60.0.0/22
ipv4:
165.192.56.56
ipv4:
165.193.56.42
ipv4:
74.112.65.118
ipv4:
13.111.0.0/16
ipv4:
143.55.237.88
ipv4:
167.89.0.0/17
ipv4:
50.31.32.0/19
ipv4:
198.21.0.0/21
ipv4:
149.72.0.0/16
ipv4:
52.76.190.252
ipv4:
3.218.253.173
ipv4:
35.160.78.215
ipv4:
54.195.228.99
ipv4:
40.107.0.0/16
ipv4:
52.100.0.0/15
ipv4:
52.102.0.0/16
ipv4:
52.103.0.0/17
ipv4:
104.47.0.0/17
include:_s004304132.autospf.email
v=spf1 ip4:34.251.228.195 ip4:142.0.176.0/20 ip4:69.48.230.0/25 ip4:66.249.80.0/20 ip4:72.14.192.0/18 ip4:108.177.8.0/21 ip4:173.194.0.0/16 ip4:172.217.0.0/19 ip4:130.211.0.0/22 ip4:37.59.249.0/24 ip4:69.25.199.0/24 ip4:87.253.236.214 ip4:148.105.0.0/16 ip4:178.33.111.144 ip4:198.2.128.0/18 ip4:205.217.12.155 ip4:205.217.12.177 ip4:159.183.195.16 ip4:143.55.237.127 ip4:143.55.237.162 ip4:143.55.237.120 include:_s004304133.autospf.email -all
ipv4:
34.251.228.195
ipv4:
142.0.176.0/20
ipv4:
69.48.230.0/25
ipv4:
66.249.80.0/20
ipv4:
72.14.192.0/18
ipv4:
108.177.8.0/21
ipv4:
173.194.0.0/16
ipv4:
172.217.0.0/19
ipv4:
130.211.0.0/22
ipv4:
37.59.249.0/24
ipv4:
69.25.199.0/24
ipv4:
87.253.236.214
ipv4:
148.105.0.0/16
ipv4:
178.33.111.144
ipv4:
198.2.128.0/18
ipv4:
205.217.12.155
ipv4:
205.217.12.177
ipv4:
159.183.195.16
ipv4:
143.55.237.127
ipv4:
143.55.237.162
ipv4:
143.55.237.120
include:_s004304133.autospf.email
v=spf1 ip4:185.12.80.0/22 ip4:216.198.0.0/18 ip4:168.245.0.0/17 ip4:159.183.0.0/16 ip4:13.215.187.237 ip4:20.96.12.43/32 ip4:20.1.130.13/32 ip4:35.190.247.0/24 ip4:64.233.160.0/19 ip4:209.85.128.0/17 ip4:216.58.192.0/19 ip4:216.239.32.0/19 ip4:172.217.32.0/20 ip4:172.253.56.0/21 ip4:108.177.96.0/19 ip4:37.59.69.128/25 ip4:75.98.95.161/27 ip4:87.253.232.0/21 ip4:96.43.144.64/31 ip4:96.43.148.64/31 include:_s004304134.autospf.email -all
ipv4:
185.12.80.0/22
ipv4:
216.198.0.0/18
ipv4:
168.245.0.0/17
ipv4:
159.183.0.0/16
ipv4:
13.215.187.237
ipv4:
20.96.12.43/32
ipv4:
20.1.130.13/32
ipv4:
35.190.247.0/24
ipv4:
64.233.160.0/19
ipv4:
209.85.128.0/17
ipv4:
216.58.192.0/19
ipv4:
216.239.32.0/19
ipv4:
172.217.32.0/20
ipv4:
172.253.56.0/21
ipv4:
108.177.96.0/19
ipv4:
37.59.69.128/25
ipv4:
75.98.95.161/27
ipv4:
87.253.232.0/21
ipv4:
96.43.144.64/31
ipv4:
96.43.148.64/31
include:_s004304134.autospf.email
v=spf1 ip4:128.136.37.0/24 ip4:165.193.101.141 ip4:165.193.101.142 ip4:178.33.221.0/24 ip4:182.50.78.64/28 ip4:184.173.153.216 ip4:198.187.196.100 ip4:198.187.196.130 ip4:198.245.81.0/24 ip4:159.135.226.248 ip4:159.135.233.165 ip4:12.228.6.215/32 ip4:208.117.48.0/20 ip4:198.37.144.0/20 ip4:20.1.128.197/32 ip4:20.10.24.226/32 ip4:69.20.119.216/29 ip4:76.12.109.192/27 ip4:67.59.141.128/28 include:_s004304135.autospf.email -all
ipv4:
128.136.37.0/24
ipv4:
165.193.101.141
ipv4:
165.193.101.142
ipv4:
178.33.221.0/24
ipv4:
182.50.78.64/28
ipv4:
184.173.153.216
ipv4:
198.187.196.100
ipv4:
198.187.196.130
ipv4:
198.245.81.0/24
ipv4:
159.135.226.248
ipv4:
159.135.233.165
ipv4:
12.228.6.215/32
ipv4:
208.117.48.0/20
ipv4:
198.37.144.0/20
ipv4:
20.1.128.197/32
ipv4:
20.10.24.226/32
ipv4:
69.20.119.216/29
ipv4:
76.12.109.192/27
ipv4:
67.59.141.128/28
include:_s004304135.autospf.email
v=spf1 ip4:172.217.128.0/19 ip4:172.217.160.0/20 ip4:172.217.192.0/19 ip4:172.253.112.0/20 ip4:74.62.122.128/25 ip4:139.146.160.0/25 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:204.14.232.64/28 ip4:204.14.234.64/28 ip4:205.201.128.0/20 ip4:205.237.106.0/24 ip4:136.147.176.0/24 ip4:136.147.182.0/24 ip4:136.147.135.0/24 ip4:199.122.123.0/24 ip4:103.151.192.0/23 ip4:188.172.128.0/20 ip4:192.161.144.0/20 include:_s004304136.autospf.email -all
ipv4:
172.217.128.0/19
ipv4:
172.217.160.0/20
ipv4:
172.217.192.0/19
ipv4:
172.253.112.0/20
ipv4:
74.62.122.128/25
ipv4:
139.146.160.0/25
ipv4:
185.189.236.0/22
ipv4:
185.211.120.0/22
ipv4:
204.14.232.64/28
ipv4:
204.14.234.64/28
ipv4:
205.201.128.0/20
ipv4:
205.237.106.0/24
ipv4:
136.147.176.0/24
ipv4:
136.147.182.0/24
ipv4:
136.147.135.0/24
ipv4:
199.122.123.0/24
ipv4:
103.151.192.0/23
ipv4:
188.172.128.0/20
ipv4:
192.161.144.0/20
include:_s004304136.autospf.email
v=spf1 ip4:192.254.112.0/20 ip4:223.165.113.0/24 ip4:223.165.115.0/24 ip4:223.165.118.0/23 ip4:223.165.120.0/23 ip4:70.42.227.151/32 ip4:70.42.227.152/32 ip4:20.114.186.35/32 ip4:209.41.176.224/28 ip4:178.33.137.208/28 ip4:20.119.174.191/32 ip4:20.230.106.230/32 ip4:20.119.207.133/32 ip4:204.232.162.112/28 ip4:204.232.180.112/29 ip4:204.232.180.128/29 ip6:2800:3f0:4000::/36 ip4:139.146.146.128/25 include:_s004304137.autospf.email -all
ipv4:
192.254.112.0/20
ipv4:
223.165.113.0/24
ipv4:
223.165.115.0/24
ipv4:
223.165.118.0/23
ipv4:
223.165.120.0/23
ipv4:
70.42.227.151/32
ipv4:
70.42.227.152/32
ipv4:
20.114.186.35/32
ipv4:
209.41.176.224/28
ipv4:
178.33.137.208/28
ipv4:
20.119.174.191/32
ipv4:
20.230.106.230/32
ipv4:
20.119.207.133/32
ipv4:
204.232.162.112/28
ipv4:
204.232.180.112/29
ipv4:
204.232.180.128/29
ipv4:
139.146.146.128/25
ipv6:
2800:3f0:4000::/36
include:_s004304137.autospf.email
v=spf1 ip6:2a01:111:f400::/48 ip6:2a01:111:f403::/49 ip6:2001:4860:4000::/36 ip6:2404:6800:4000::/36 ip6:2607:f8b0:4000::/36 ip6:2a00:1450:4000::/36 ip6:2c0f:fb50:4000::/36 ip6:2a01:111:f403:8000::/51 ip6:2a01:111:f403:c000::/51 ip6:2a01:111:f403:f000::/52 exists:%{i}._spf.mta.salesforce.com -all
ipv6:
2a01:111:f400::/48
ipv6:
2a01:111:f403::/49
ipv6:
2001:4860:4000::/36
ipv6:
2404:6800:4000::/36
ipv6:
2607:f8b0:4000::/36
ipv6:
2a00:1450:4000::/36
ipv6:
2c0f:fb50:4000::/36
ipv6:
2a01:111:f403:8000::/51
ipv6:
2a01:111:f403:c000::/51
ipv6:
2a01:111:f403:f000::/52
include:_spf.qualtrics.com
v=spf1 ip4:162.247.216.0/22 ip4:139.60.152.0/22 ip4:98.97.248.0/21 ip4:64.69.212.0/24 ip4:54.186.193.102/32 ip4:52.222.73.120/32 ip4:52.222.73.83 ip4:52.222.62.51 ip4:52.222.75.85 ip4:52.222.89.228 ip4:160.1.62.192 ip4:52.61.91.9 ip4:15.200.21.50 ip4:15.200.201.185 ip4:15.200.44.248 -all
ipv4:
162.247.216.0/22
ipv4:
139.60.152.0/22
ipv4:
98.97.248.0/21
ipv4:
64.69.212.0/24
ipv4:
54.186.193.102/32
ipv4:
52.222.73.120/32
ipv4:
52.222.73.83
ipv4:
52.222.62.51
ipv4:
52.222.75.85
ipv4:
52.222.89.228
ipv4:
160.1.62.192
ipv4:
52.61.91.9
ipv4:
15.200.21.50
ipv4:
15.200.201.185
ipv4:
15.200.44.248

E-Mail handling

How should the checkHost() function of the e-mail server handle the e-mail? (syntax )

~all
SoftFail (non-compliant e-mails are accepted but marked)

Will be forwarded to another SPF record?

There is no reference to any other SPF record

Are the server addresses allowed to send e-mails?

In the SPF entry the mechanism 'a' has not been set.

Additionally authorized A-records?

In addition to the A-Records stored in the DNS, we could not find any other records authorized in the SPF-Record.

Are the registered mail servers allowed to send e-mails?

In the SPF entry the mechanism 'mx' has not been set

Additionally authorized MX records

We could not find any other records authorized in the SPF record besides the MX records stored in the DNS

Additionally authorized IPv6 addresses

No explicit IPv6 addresses in the SPF record have been authorised to send

How is the sender informed?

The exp mechanism acts as a return to the sender if the IP address was not authorized to send and notify them. None was found.

PTR (obsolete mechanism)

The ptr mechanism is deprecated, slow and insecure and should not be used

PTR:

The ptr mechanism is deprecated, slow and insecure and should not be used

Authorize IP addresses with markers

When SPF is evaluated, macros can specifically authorize Ip addresses based on the request or connection of the user or client (RFC7208 )

Receiver address

analysis.ra-missing

Amount of reports

analysis.rp-missing

Report selection

analysis.rr-missing

Unknown mechanisms

No unknown mechanisms were found in the SPF record.

Recently performed SPF lookups

Server IP Address

We have determined the following IP address for the domain:

No domain specified

Reverse address

We have determined the following name for the server IP address:

No PTR record found

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