Yahoo's recent DMARC policy change would seem likely to give you problems too, if any of your users have *@yahoo.com as their regular address. http://yahoomail.tumblr.com/post/82426900353/yahoo-dmarc-policy-change-what-... Regards Brian Carpenter On 18/04/2014 17:01, Richard Hector wrote:
Hi all,
I'm in an organisation that uses a forwarding mailserver to give (some) members user(a)organisation email addresses, which get forwarded to their regular address.
The trouble is, I have SPF on my domain, and one at least of the receiving MTAs checks it, and my mail gets rejected as a consequence.
What's the best solution?
Do I (and anybody else who might mail us) need to turn off SPF, or make it less strict?
Does the forwarding server need to remail rather than forward?
Do we need to persuade the receiving mail admins to whitelist our forwarder (there could be many others)?
Should the organisation mailserver just operate an IMAP/POP/Webmail service rather than forwarding, so that this never arises (my favourite)?
Any tips?
Thanks, Richard _______________________________________________ NZNOG mailing list NZNOG(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog