Re: SPF, Groups.io and Office365 Exchange Online #split
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Lawrence,
Is it worth those of us who have control over our domains, have SPF set up for our mail hosts, I think that is always worthwhile. I'm a little surprised that your mail ever reaches anyone's inbox if your domain's DNS entries don't have SPF records listing
your mail server(s). If you are contracting with a provider for custom domain email service they probably took care of this for you. ? and who send a fair amount of mail via adding an SPF include record for ? This I don't think is needed nor a good idea. Groups.io publishes SPF records for its outbound servers, and it is the "envelope from" that inbound services ought to be testing against. That is, SPF applies to the actual sender (the connecting server) not to the domain in the header From field. Just worrying that at some point emails will start being bounced, junked or blocked.? That may happen as a result of DMARC testing - which has the added requirement that the header From field's domain "align with" (match) the envelope from's. That's been a major bug-a-boo with email list services. Groups.io has a work-around for the DMARC problem, which you will notice in action on the From addresses of messages from certain email services (including Yahoo Mail and AOL most prominently): the addresses are re-written so that they are (header) From Groups.io as well as being envelope From Groups.io. This was necessary because those outbound services specify a DMARC policy of "reject". Posting here as searching the Help Center for SPF returns zero results, and newest comments on SPF in here seem to be quite a while ago.? SPF is really an infrastructure mechanism that most email users need never know or care about. But mail server admins definitely need to know about. Shal -- Help: /static/help More Help: /g/GroupManagersForum/wiki Even More Help: Search button at the top of Messages list |
Shal Farley