We're having some email deliverability problems and I've tracked it down to a couple of issues:

  1. SPF/DKIM records are mismatched
  2. Our app is sending mail from one domain on behalf of another without permission

Our app is set up to send mail through a mail server at companymailserver.com, but we're changing the FROM address to come from [email protected].

I can't quite figure out what needs to be done to authorize companymailserver.com to send mail on behalf of [email protected]

I know I need to handle this with Domain Delegation, but I'm at a loss on how to actually set that up.

If someone can point me in the right direction I'd be very grateful!

1 Answer 1


To authorize companymailserver.com to send mail for companyname.com you would need to add an SPF record to the companyname.com public DNS to specify that it is allowed.

companyname.com IN TXT v=spf1 ip4: ip4: -all

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .