Alright, I'm at my wits end with freaking GMAIL. It's bad enough I've never had my own personal account with them be the slightest bit useful, with nothing but spam getting through and my actual legitimate e-mails more often than not being flat out rejected without even the courtesy of going to my spam folder...
But that they flat out are bouncing e-mails from this server when nobody -- not even M$ who used to be bigger pratts than Google -- else seems to have a flipping problem.
I thought it was that my PTR / RDNS got hijacked, but that's fixed now. I've got a SPF txt record, DKIM is built into ISPConfig so that should be working... I don't get it. DMARC is SUPPOSED to be optional so that shouldn't be the issue.... and given what a pain in the ass that is to setup and maintain, I'd like to avoid that
They just flat out reject it.
Now that I have the PTR record fixed, the blasted thing went from at least telling me it was rejected (without saying why) to giving no bloody notice as to where it went or why.
At this point I might just ban gmail from being used to join altogether!