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difference between spf and txt record

Posted on 2014-01-17
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Last Modified: 2014-02-11
difference between spf and txt record

please define it simple words...
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Question by:harisaboobaker
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by:Dave Baldwin
Dave Baldwin earned 167 total points
ID: 39789334
'spf' info is put into a 'txt' in your DNS.  You can use this 'wizard' to generate the info that you need to put in your 'txt' record: https://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/
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by:Patrick Bogers
Patrick Bogers earned 166 total points
ID: 39789336
Hi

A SPF record is a TXT record which contain all valid emailadresses you include with each mail.
This way a recieving mail server can check if emails are really send by the real sender. (So spammers can not use your emailadresses.)

TXT records of different kinds can hold other information as well.
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Marcus Bointon earned 167 total points
ID: 39789426
I think the OP knows what SPF is for. SPF records can be stored as SPF or TXT DNS records. Their format is identical, they just have a different record type, like A and CNAME records are different types. TXT records can hold any arbitrary text, so they can be used for SPF, but SPF records may ONLY contain SPF data.

You should store your SPF as both types, and in any software you write, check for the SPF type first.

Do not use SenderID, and ignore whatever Microsoft says about it since they don't even use it themselves, and it was a bad idea to start with.
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