I received an email from a customer because an email he sent to someone in Canada was rejected due to SPF checking. Our DNS server automatically sets an SPF record for each domain with the value v=spf1 mx -all Been that way since SPF first became available and I've never had a problem.
I'm curious if anyone here rejects (bounces) email strictly off of an SPF check? I think that's ridiculous. Moreover, I'm pretty certain our SPF record is correct. I'm thinking the yahoo's in Canada are the ones who don't know what they are doing. Thoughts?
