postmarkapp.com SPF record

7 / 10 Lookups
0 Issues
127,340 IPv4 addresses
1.49 ⋅ 10 28 IPv6 addresses
v=spf1 a mx include:spf.mtasv.net include:_spf.google.com include:cmail1.com include:mail.zendesk.com include:helpscoutemail.com ~all Copied

Terms

a
pass if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
mx
pass if the sender's IP address is in the A or AAAA record of this domain.
5 IPv4 addresses
5 IPv6 addresses
or else
include:
spf.mtasv.net
Evaluate this SPF record and pass if it
passes.
Postmark
Email automation
or else
Evaluate this SPF record and pass if it
passes.
Gmail
Inbox software
or else
include:
cmail1.com
Evaluate this SPF record and pass if it
passes.
or else
Evaluate this SPF record and pass if it
passes.
Zendesk
Helpdesk
or else
Evaluate this SPF record and pass if it
passes.
or else
~all
soft fail the email's SPF check.

Included records

v=spf1 a mx include:spf.mtasv.net include:_spf.google.com include:cmail1.com include:mail.zendesk.com include:helpscoutemail.com ~all
4 x ip4 -all
2 x ip4 6 x ip6 ~all
6 x ip4 ~all
5 x ip4 ~all
6 x ip4 ~all

IP ranges

Cloudflare London
AS209242
Google
AS15169
Google
AS15169
Google
AS15169
Google
AS15169
Google
AS15169
Google
AS15169
Google
AS15169
Google
AS15169
Google
AS15169
Google
AS15169
DEFT.COM
AS23352
DEFT.COM
AS23352
DEFT.COM
AS23352
DEFT.COM
AS23352
Google
AS15169
Google
AS15169
Google
AS15169
Google
AS15169
Google
AS15169
Google
AS15169
Google
AS15169
Google
AS15169
CAMPAIGN MONITOR PTY
AS55819
CAMPAIGN MONITOR PTY
AS55819
CAMPAIGN MONITOR PTY
AS55819
Amazon.com
AS14618
CAMPAIGN MONITOR PTY
AS55819
CAMPAIGN MONITOR PTY
AS55819
Amazon.com
AS16509
Amazon.com
AS16509
Amazon.com
AS14618
Amazon.com
AS14618
Amazon.com
AS14618
Amazon.com
AS14618
Amazon.com
AS14618
Amazon.com
AS14618