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Email Delivery to Gmail Breaks After Implementing DomainKey

I have a personal VPS that I use as a personal email and web server. Today I was diagnosing email, and I created a test account at Gmail. At first I was not implemented DomainKey and only SPF was ...
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309 views

What would cause intermittent DomainKey-Status: failures?

Every week, we send something like a small newsletter. Sometimes, the header in the newsletter says DomainKey-Status: bad (test mode) Sometimes it says DomainKey-Status: good (test mode) All ...
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545 views

qmail is returning all mails as “handlers permanentfail”

i am sending emails through php and qmail with SPF record and domainkeys on. but all emails are returned as handlers permanentfail. what is the problem?
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postfix opendkim DKIM-Signature and Domainkey-Signature

Running postfix on CentOS 6 as an edge relay for a while now, so all our outgoing mail is routed through one point with opendkim signing the mail. This works great. I was originally using ...