I run an SMTP server with SPF enabled, and I need to email users from a list of academic addresses. Thing is, these addresses are used to forward emails to the end user. And SPF breaks forwarding, as I figured out the hard way (554 5.7.9 errors from Yahoo).
As far as I can think, I am left with few options :
- Ask sysadmins to implement SRS or other workarounds.
- Add these MX domains as authorized SPF domains ;
- (Temporarily ?) disable SPF.
All these options have serious downsides. Are there other options ?
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