I run my own mailserver and Gmail seems to receive my emails fine. They're somewhat more prone to be marked as spam, but for my purposes that ain't a big deal.
AT&T, however, has out of the blue decided that my server's blacklisted despite showing up on precisely zero blacklists. I've reached out to their email address specifically for this issue and haven't gotten so much as a response, let alone resolution. My hunch is that something about my IP block got flagged and my server became collateral damage. Oh well; I guess I can't email my grandpa.
AT&T, however, has out of the blue decided that my server's blacklisted despite showing up on precisely zero blacklists. I've reached out to their email address specifically for this issue and haven't gotten so much as a response, let alone resolution. My hunch is that something about my IP block got flagged and my server became collateral damage. Oh well; I guess I can't email my grandpa.