SPF Record Issue
Hi Friends,
In this article I
am going to introduce you with a common issue of Email organization which
called "SPF record not found"
If you're not able to send the emails due to SPF record
are not found or not valid.
What is SPF??????
Sender Policy
Framework (SPF) is an email validation system designed to prevent email spam by
detecting email spoofing, a common vulnerability, by
verifying sender IP addresses. SPF allows administrators to
specify which hosts are allowed to send mail from a
given domain by creating a specific SPF record (or TXT record) in
the Domain Name System (DNS). Mail
exchangers use the DNS to check that mail from a given domain
is being sent by a host sanctioned by that domain's administrators
Firstly we have to
check the emails logs and on the behalf of that logs, we analyze that email is
rejecting due to SPF record failure.
Here I am attaching a screenshot of SFP record failure issue.
Image-1.1
For more details click on log and you will see the
following results.
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6:59:23.000 PM
Oct 24 18:59:23
mx-01.test.com sm-mta[1165]: r9OFxLhb001165:
from=<Reggie.Waterman@rci.rogers.com>, size=7728, class=0, nrcpts=1,
msgid=<da19bbed761a4c248265eb39728e10b1@CO1PR04MB426.namprd04.prod.outlook.com>,
proto=ESMTP, daemon=MTA, tls_verify=FAIL, auth=NONE,
relay=mail-bl2lp0208.outbound.protection.outlook.com [207.46.163.208]
Oct 24 18:59:23 mx-01.test.comdkim-filter[5874]:
r9OFxLhb001165: no signature data
Oct 24 18:59:23 mx-01.test.comsm-mta[1165]:
r9OFxLhb001165: Milter insert (1): header: X-DKIM: OpenDKIM Filter v2.1.3 mx-01.test.comr9OFxLhb001165
Oct 24 18:59:23 mx-01.test.comMM:
[Jilter Processor 17 - Async Jilter Worker 13 - 127.0.0.1:42288-r9OFxLhb001165]
INFO user.log - mtaqid=r9OFxLhb001165, engine=cloudmark,
from=<Reggie.Waterman@rci.rogers.com>, recipients=<chad.saliba@test.com>,
relay=mail-bl2lp0208.outbound.protection.outlook.com [207.46.163.208],
spam_score=0.00, size=7947, spam_class=ham
Oct 24 18:59:24 mx-01.test.comMM:
[Jilter Processor 17 - Async Jilter Worker 13 -
127.0.0.1:42288-r9OFxLhb001165] INFO
user.log - SPF.Check:
classification=SPF-Failure
Oct 24 18:59:24 mx-01.test.comMM:
[Jilter Processor 17 - Async Jilter Worker 13 -
127.0.0.1:42288-r9OFxLhb001165] INFO
user.log -
mtaqid=r9OFxLhb001165, pra=Reggie.Waterman@rci.rogers.com,
relay=mail-bl2lp0208.outbound.protection.outlook.com [207.46.163.208], sid-status=FAIL
Oct 24 18:59:24 mx-01.test.comMM:
[Jilter Processor 17 - Async Jilter Worker 13 -
127.0.0.1:42288-r9OFxLhb001165] INFO
user.log -
mtaqid=r9OFxLhb001165,
msgid=<da19bbed761a4c248265eb39728e10b1@CO1PR04MB426.namprd04.prod.outlook.com>,
from=<Reggie.Waterman@rci.rogers.com>, size=7947, to=<chad.saliba@test.com>,
relay=mail-bl2lp0208.outbound.protection.outlook.com [207.46.163.208],
categorization=clean, disposition=permanently-rejected
Oct 24 18:59:24 mx-01.test.comsm-mta[1165]:
r9OFxLhb001165: Milter: data, reject=551 SPF failed
Oct 24 18:59:24 mx-01.test.comsm-mta[1165]:
r9OFxLhb001165: to=<chad.saliba@test.com>, delay=00:00:01, pri=37728, stat=SPF
failed
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Note: Under the red bold color, you can see the
SPF failure issue.
Visit on the following sites to check the status of SPF Failure
or understand more about the SPF record.
Or
To resolve this issue, you should inform to IT-Team to register or verify the IP address of their Sending
(Outgoing) server in public DNS SPF record.
Regards,
Arun Chaudhary
MCP, MCTS, MCITP, VCA, ITIL
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