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We are using magento on our server. Magento sent transactional emails directly from our server using php mail function, along with this we are using third party webmail service. Means our mx entry pointing to other server.

In this case what will be the valid SPF entry that also include SPF entries from webmail server as well and is their any other dns entry we need to add?

Suppose our IP is, MX server points to: mail1.mailserver.com,

New suggested SPF entry will

v=spf1 +a +mx +ip4: include:_spf.mailserver.com ?all
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1 Answer 1

up vote 1 down vote accepted

You may start with...

"v=spf1 ip4:aaa.bbb.ccc.ddd include:mail1.mailserver.com ?all"

Assuming your IP is aaa.bbb.ccc.ddd and your MX record points to mail1.mailserver.com, the above SPF / TXT record should work for your requirement.

Once the SPF record works correctly, you may consider switching the above record to the following...

"v=spf1 ip4:aaa.bbb.ccc.ddd include:mail1.mailserver.com -all"

The symbol before the all means the following... (ref: http://www.openspf.org/SPF_Record_Syntax)

"+" Pass
"-" Fail
"~" SoftFail
"?" Neutral

You may also generate the SPF record using the online SPF generator from Microsoft at http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/ .

is their any other dns entry we need to add?

Yes, you need to add the above as a 'TXT' record. Ref: https://en.wikipedia.org/wiki/Sender_Policy_Framework .

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Thanks Pothi. whats is difference between include:_spf.mailserver.com and include:mail1.mailserver.com? –  ganesh Oct 7 '13 at 6:48
Just enter whatever the name of the mail server after include:. mail1.mailserver.com was the example I used. _spf.mailserver.com was the example you used. No other difference. –  Pothi Oct 7 '13 at 7:16

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