SPF Check:
bostonscientific.com

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.

Loading...

SPF check passed

Your SPF record check result
  •   SPF record found
  •   Syntax check: 0 errors
  •   Email Anti-Spoofing: Good
Summary of the SPF check

Does a valid SPF record exist?
An SPF record was found for the domain bostonscientific.com.
The SPF record for bostonscientific.com is valid.
The syntax check of the SPF record shows no obvious errors.

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, 123 IP address(es) were authorized by the SPF record to send emails.

The SPF record analysis was performed on 25.02.2025 at 11:32:52 clock.

Lookup for the domain:
bostonscientific.com
IP address to be checked:
no IP address specified
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Evaluation for the domain bostonscientific.com 

Nameserverset:
dmtu.mt.ns.els-gms.att.net
dbru.br.ns.els-gms.att.net
Determined SPF record:
Legitimated IP addresses:
IP Provider / ASN DNSBL-Check
13.111.0.0/16
SALESFORCE blacklist 
161.71.32.0/19
SALESFORCE blacklist 
204.220.160.0/19
Mailjet SAS blacklist 
13.110.224.0/20
SALESFORCE blacklist 
66.231.80.0/20
SALESFORCE blacklist 
68.232.192.0/20
SALESFORCE blacklist 
69.72.32.0/20
MAILGUN blacklist 
128.17.0.0/20
SALESFORCE blacklist 
128.17.64.0/20
SALESFORCE blacklist 
128.17.128.0/20
SALESFORCE blacklist 
128.17.192.0/20
SALESFORCE blacklist 
128.245.0.0/20
SALESFORCE blacklist 
128.245.64.0/20
SALESFORCE blacklist 
128.245.176.0/20
SALESFORCE blacklist 
128.245.240.0/20
SALESFORCE blacklist 
136.147.128.0/20
SALESFORCE blacklist 
136.147.176.0/20
SALESFORCE blacklist 
136.147.224.0/20
SALESFORCE blacklist 
143.55.224.0/20
MAILGUN blacklist 
159.92.160.0/20
SALESFORCE blacklist 
159.112.240.0/20
MAILGUN blacklist 
159.135.224.0/20
MAILGUN blacklist 
161.38.192.0/20
MAILGUN blacklist 
161.71.64.0/20
SALESFORCE blacklist 
198.244.48.0/20
MAILGUN blacklist 
198.245.80.0/20
SALESFORCE blacklist 
13.110.208.0/21
SALESFORCE blacklist 
87.253.232.0/21
Mailjet SAS blacklist 
98.97.248.0/21
AMAZON-02 blacklist 
199.122.120.0/21
SALESFORCE blacklist 
13.110.216.0/22
SALESFORCE blacklist 
139.60.152.0/22
QUALTRICS-01 blacklist 
162.247.216.0/22
- blacklist 
166.78.68.0/22
RACKSPACE blacklist 
185.189.236.0/22
Mailjet SAS blacklist 
185.211.120.0/22
Mailjet SAS blacklist 
185.250.236.0/22
Mailjet SAS blacklist 
23.253.182.0/23
RACKSPACE blacklist 
64.132.88.0/23
EXACT-7 blacklist 
104.130.122.0/23
RACKSPACE blacklist 
141.193.32.0/23
AMAZON-02 blacklist 
159.92.154.0/23
SALESFORCE blacklist 
159.92.158.0/23
SALESFORCE blacklist 
192.237.158.0/23
RACKSPACE blacklist 
198.61.254.0/23
RACKSPACE blacklist 
64.69.212.0/24
AMAZON-02 blacklist 
64.132.92.0/24
EXACT-7 blacklist 
91.217.141.0/24
Datagroup Se blacklist 
146.20.113.0/24
RACKSPACE blacklist 
146.20.191.0/24
RACKSPACE blacklist 
159.92.157.0/24
SALESFORCE blacklist 
207.67.38.0/24
EXACT-7 blacklist 
207.250.68.0/24
EXACT-7 blacklist 
209.61.151.0/24
RMH-14 blacklist 
1.1.79.128/25
ARTERIA Networks Corporation blacklist 
159.135.132.128/25
Rackspace Ltd. blacklist 
1.1.78.64/26
ARTERIA Networks Corporation blacklist 
1.1.90.128/26
ARTERIA Networks Corporation blacklist 
1.1.114.0/26
ARTERIA Networks Corporation blacklist 
146.20.112.0/26
RACKSPACE blacklist 
207.67.98.192/27
LVLT-3549 blacklist 
1.1.90.192/28
ARTERIA Networks Corporation blacklist 
1.1.114.64/28
ARTERIA Networks Corporation blacklist 
104.130.96.0/28
RACKSPACE blacklist 
209.43.22.0/28
LIGHTBOUND-AS blacklist 
210.251.241.208/28
So-net Corporation blacklist 
159.135.140.80/29
Rackspace Ltd. blacklist 
210.255.175.200/29
KDDI CORPORATION blacklist 
23.251.231.200/30
AMAZON-AES blacklist 
23.251.236.180/30
AMAZON-02 blacklist 
23.251.236.184/30
AMAZON-02 blacklist 
23.251.231.198/31
AMAZON-AES blacklist 
23.251.231.204/31
AMAZON-AES blacklist 
13.231.13.71 AMAZON-02 blacklist 
15.200.21.50 Amazon Data Services Ireland Ltd blacklist 
15.200.44.248 Amazon Data Services Ireland Ltd blacklist 
15.200.201.185 Amazon Data Services Ireland Ltd blacklist 
20.1.128.197 MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
20.1.130.13 MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
20.10.24.226 MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
20.96.12.43 MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
20.114.186.35 MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
20.119.174.191 MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
20.119.207.133 MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
20.230.106.230 MICROSOFT-CORP-MSN-AS-BLOCK blacklist 
23.251.231.197 AMAZON-AES blacklist 
23.251.231.206 AMAZON-AES blacklist 
23.251.236.179 AMAZON-02 blacklist 
23.251.236.188 AMAZON-02 blacklist 
35.73.83.3 AMAZON-02 blacklist 
35.75.155.228 AMAZON-02 blacklist 
35.76.57.204 AMAZON-02 blacklist 
35.76.75.163 AMAZON-02 blacklist 
35.76.200.222 AMAZON-02 blacklist 
35.78.36.129 AMAZON-02 blacklist 
52.61.91.9 Amazon Data Services Ireland Ltd blacklist 
52.194.34.107 AMAZON-02 blacklist 
52.222.62.51 Amazon Data Services Ireland Ltd blacklist 
52.222.73.83 Amazon Data Services Ireland Ltd blacklist 
52.222.73.120 Amazon Data Services Ireland Ltd blacklist 
52.222.75.85 Amazon Data Services Ireland Ltd blacklist 
52.222.89.228 Amazon Data Services Ireland Ltd blacklist 
54.85.233.223 AMAZON-AES blacklist 
54.186.193.102 AMAZON-02 blacklist 
54.194.192.132 AMAZON-02 blacklist 
54.235.95.161 AMAZON-AES blacklist 
62.75.247.44 Host Europe GmbH blacklist 
65.221.8.29 UUNET blacklist 
65.221.12.128 UUNET blacklist 
65.221.12.148 UUNET blacklist 
70.42.227.151 ASN-INTERNAP-BLK blacklist 
70.42.227.152 ASN-INTERNAP-BLK blacklist 
82.165.193.1 IONOS SE blacklist 
85.25.144.9 velia.net Internetdienste GmbH blacklist 
87.79.30.25 NetCologne Gesellschaft fur Telekommunikation mbH blacklist 
87.79.30.30 NetCologne Gesellschaft fur Telekommunikation mbH blacklist 
149.72.83.41 SENDGRID blacklist 
160.1.62.192 Amazon Data Services Ireland Ltd blacklist 
195.66.99.135 Datagroup Se blacklist 
204.155.16.159 BOSTON-SCIENTIFIC-132-189-0-0 blacklist 
204.155.22.71 BOSTON-SCIENTIFIC-132-189-0-0 blacklist 
212.227.89.57 IONOS SE blacklist 
217.160.226.166 IONOS SE blacklist 
SPF-Syntax Check:
Analysis result of the SPF record for the domain: bostonscientific.com

SPF record available?

We found an SPF record for the domain.

v=spf1

Additional external SPF records

We could find other records authorized in the SPF record

include:_u.bostonscientific.com._spf.smart.ondmarc.com
v=spf1 ip4:13.111.0.0/16 ip4:161.71.32.0/19 ip4:204.220.160.0/19 ip4:13.110.224.0/20 ip4:66.231.80.0/20 ip4:68.232.192.0/20 ip4:69.72.32.0/20 ip4:128.17.0.0/20 ip4:128.17.64.0/20 ip4:128.17.128.0/20 ip4:128.17.192.0/20 ip4:128.245.0.0/20 ip4:128.245.64.0/20 ip4:128.245.176.0/20 ip4:128.245.240.0/20 ip4:136.147.128.0/20 ip4:136.147.176.0/20 include:_p.1.1gl25a5._u.bostonscientific.com._spf.smart.ondmarc.com ~all
ipv4:
13.111.0.0/16
ipv4:
161.71.32.0/19
ipv4:
204.220.160.0/19
ipv4:
13.110.224.0/20
ipv4:
66.231.80.0/20
ipv4:
68.232.192.0/20
ipv4:
69.72.32.0/20
ipv4:
128.17.0.0/20
ipv4:
128.17.64.0/20
ipv4:
128.17.128.0/20
ipv4:
128.17.192.0/20
ipv4:
128.245.0.0/20
ipv4:
128.245.64.0/20
ipv4:
128.245.176.0/20
ipv4:
128.245.240.0/20
ipv4:
136.147.128.0/20
ipv4:
136.147.176.0/20
include:_p.1.1gl25a5._u.bostonscientific.com._spf.smart.ondmarc.com
v=spf1 ip4:136.147.224.0/20 ip4:143.55.224.0/20 ip4:159.92.160.0/20 ip4:159.112.240.0/20 ip4:159.135.224.0/20 ip4:161.38.192.0/20 ip4:161.71.64.0/20 ip4:198.244.48.0/20 ip4:198.245.80.0/20 ip4:13.110.208.0/21 ip4:87.253.232.0/21 ip4:98.97.248.0/21 ip4:199.122.120.0/21 ip4:13.110.216.0/22 ip4:139.60.152.0/22 ip4:162.247.216.0/22 include:_p.2.1gl25a5._u.bostonscientific.com._spf.smart.ondmarc.com ~all
ipv4:
136.147.224.0/20
ipv4:
143.55.224.0/20
ipv4:
159.92.160.0/20
ipv4:
159.112.240.0/20
ipv4:
159.135.224.0/20
ipv4:
161.38.192.0/20
ipv4:
161.71.64.0/20
ipv4:
198.244.48.0/20
ipv4:
198.245.80.0/20
ipv4:
13.110.208.0/21
ipv4:
87.253.232.0/21
ipv4:
98.97.248.0/21
ipv4:
199.122.120.0/21
ipv4:
13.110.216.0/22
ipv4:
139.60.152.0/22
ipv4:
162.247.216.0/22
include:_p.2.1gl25a5._u.bostonscientific.com._spf.smart.ondmarc.com
v=spf1 ip4:166.78.68.0/22 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:23.253.182.0/23 ip4:64.132.88.0/23 ip4:104.130.122.0/23 ip4:141.193.32.0/23 ip4:159.92.154.0/23 ip4:159.92.158.0/23 ip4:192.237.158.0/23 ip4:198.61.254.0/23 ip4:64.69.212.0/24 ip4:64.132.92.0/24 ip4:91.217.141.0/24 ip4:146.20.113.0/24 include:_p.3.1gl25a5._u.bostonscientific.com._spf.smart.ondmarc.com ~all
ipv4:
166.78.68.0/22
ipv4:
185.189.236.0/22
ipv4:
185.211.120.0/22
ipv4:
185.250.236.0/22
ipv4:
23.253.182.0/23
ipv4:
64.132.88.0/23
ipv4:
104.130.122.0/23
ipv4:
141.193.32.0/23
ipv4:
159.92.154.0/23
ipv4:
159.92.158.0/23
ipv4:
192.237.158.0/23
ipv4:
198.61.254.0/23
ipv4:
64.69.212.0/24
ipv4:
64.132.92.0/24
ipv4:
91.217.141.0/24
ipv4:
146.20.113.0/24
include:_p.3.1gl25a5._u.bostonscientific.com._spf.smart.ondmarc.com
v=spf1 ip4:146.20.191.0/24 ip4:159.92.157.0/24 ip4:207.67.38.0/24 ip4:207.250.68.0/24 ip4:209.61.151.0/24 ip4:1.1.79.128/25 ip4:159.135.132.128/25 ip4:1.1.78.64/26 ip4:1.1.90.128/26 ip4:1.1.114.0/26 ip4:146.20.112.0/26 ip4:207.67.98.192/27 ip4:1.1.90.192/28 ip4:1.1.114.64/28 ip4:104.130.96.0/28 ip4:209.43.22.0/28 ip4:210.251.241.208/28 include:_p.4.1gl25a5._u.bostonscientific.com._spf.smart.ondmarc.com ~all
ipv4:
146.20.191.0/24
ipv4:
159.92.157.0/24
ipv4:
207.67.38.0/24
ipv4:
207.250.68.0/24
ipv4:
209.61.151.0/24
ipv4:
1.1.79.128/25
ipv4:
159.135.132.128/25
ipv4:
1.1.78.64/26
ipv4:
1.1.90.128/26
ipv4:
1.1.114.0/26
ipv4:
146.20.112.0/26
ipv4:
207.67.98.192/27
ipv4:
1.1.90.192/28
ipv4:
1.1.114.64/28
ipv4:
104.130.96.0/28
ipv4:
209.43.22.0/28
ipv4:
210.251.241.208/28
include:_p.4.1gl25a5._u.bostonscientific.com._spf.smart.ondmarc.com
v=spf1 ip4:159.135.140.80/29 ip4:210.255.175.200/29 ip4:23.251.231.200/30 ip4:23.251.236.180/30 ip4:23.251.236.184/30 ip4:23.251.231.198/31 ip4:23.251.231.204/31 ip4:13.231.13.71 ip4:15.200.21.50 ip4:15.200.44.248 ip4:15.200.201.185 ip4:20.1.128.197 ip4:20.1.130.13 ip4:20.10.24.226 ip4:20.96.12.43 ip4:20.114.186.35 ip4:20.119.174.191 ip4:20.119.207.133 ip4:20.230.106.230 ip4:23.251.231.197 ip4:23.251.231.206 ip4:23.251.236.179 ip4:23.251.236.188 ip4:35.73.83.3 ip4:35.75.155.228 ip4:35.76.57.204 ip4:35.76.75.163 ip4:35.76.200.222 ip4:35.78.36.129 ip4:52.61.91.9 ip4:52.194.34.107 ip4:52.222.62.51 ip4:52.222.73.83 ip4:52.222.73.120 ip4:52.222.75.85 ip4:52.222.89.228 ip4:54.85.233.223 ip4:54.186.193.102 ip4:54.194.192.132 ip4:54.235.95.161 ip4:62.75.247.44 ip4:65.221.8.29 ip4:65.221.12.128 ip4:65.221.12.148 ip4:70.42.227.151 ip4:70.42.227.152 ip4:82.165.193.1 ip4:85.25.144.9 ip4:87.79.30.25 ip4:87.79.30.30 ip4:149.72.83.41 ip4:160.1.62.192 ip4:195.66.99.135 ip4:204.155.16.159 ip4:204.155.22.71 ip4:212.227.89.57 ip4:217.160.226.166 ~all
ipv4:
159.135.140.80/29
ipv4:
210.255.175.200/29
ipv4:
23.251.231.200/30
ipv4:
23.251.236.180/30
ipv4:
23.251.236.184/30
ipv4:
23.251.231.198/31
ipv4:
23.251.231.204/31
ipv4:
13.231.13.71
ipv4:
15.200.21.50
ipv4:
15.200.44.248
ipv4:
15.200.201.185
ipv4:
20.1.128.197
ipv4:
20.1.130.13
ipv4:
20.10.24.226
ipv4:
20.96.12.43
ipv4:
20.114.186.35
ipv4:
20.119.174.191
ipv4:
20.119.207.133
ipv4:
20.230.106.230
ipv4:
23.251.231.197
ipv4:
23.251.231.206
ipv4:
23.251.236.179
ipv4:
23.251.236.188
ipv4:
35.73.83.3
ipv4:
35.75.155.228
ipv4:
35.76.57.204
ipv4:
35.76.75.163
ipv4:
35.76.200.222
ipv4:
35.78.36.129
ipv4:
52.61.91.9
ipv4:
52.194.34.107
ipv4:
52.222.62.51
ipv4:
52.222.73.83
ipv4:
52.222.73.120
ipv4:
52.222.75.85
ipv4:
52.222.89.228
ipv4:
54.85.233.223
ipv4:
54.186.193.102
ipv4:
54.194.192.132
ipv4:
54.235.95.161
ipv4:
62.75.247.44
ipv4:
65.221.8.29
ipv4:
65.221.12.128
ipv4:
65.221.12.148
ipv4:
70.42.227.151
ipv4:
70.42.227.152
ipv4:
82.165.193.1
ipv4:
85.25.144.9
ipv4:
87.79.30.25
ipv4:
87.79.30.30
ipv4:
149.72.83.41
ipv4:
160.1.62.192
ipv4:
195.66.99.135
ipv4:
204.155.16.159
ipv4:
204.155.22.71
ipv4:
212.227.89.57
ipv4:
217.160.226.166

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 IPv4 addresses

No explicit IPv4 addresses in the SPF record have been authorised to send

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:

aa089eb6179d1ae2b.awsglobalaccelerator.com

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