Since i have two include addresses, should it be: "v=spf1 ?include:example.com -all example2.com ~all" is this correct or do i also have to pick one here?
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SPF ~ all vs ?all
Hello,
I am adding a SPF to my GoDaddy account and I am new to writing an SPF. I have my outlook mail server through mailstreet and they gave me a few IP addresses to add and told me to use? all at the end. Then when i go through the (wizard http://old.openspf.org) they add ~all instead - salesforce request us to add ~all too. My email campaigns are sent through exact target an they add -all in their SPF example. Can i add both? "?all" after the ip addresses and "~all" after the include: section?
How does ?all affect deliverability or how spam blockers identify my mail?
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Answers
The ~ and ? are related to what kind of failure you want the SPF to use ...
"+" Pass
"-" Fail
"~" SoftFail
"?" Neutral
Take a look at this page for more info -> http://www.openspf.org/SPF
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by: zoubi77Posted on 2009-10-21 at 11:23:06ID: 25626759
Hey,
Ii don't think you can use both ? (neutral) and ~ (softfail). You should use only ~all at the end of SFP, so all mail not originating from your A record will be marked as spam, but will not be droped. If you use 'include:' that domain should have existing SFP record. The "include:" mechanism is meant to cross administrative boundaries. Great care is needed to ensure that "include:" mechanisms do not place domains at risk for giving SPF Pass results to messages that result from cross user forgery. Unless technical mechanisms are in place at the specified otherdomain to prevent cross user forgery, "include:" mechanisms should give a Neutral rather than Pass result. This is done by adding "?" in front of "include:". The example above would be:
"v=spf1 ?include:example.com -all"
Regards