I've had domains listed in Google Postmaster Tools since 2016. Never gotten one lick of any information from any of those except for "No data to display at this time. Please come back later. Postmaster Tools requires that your domain satisfies certain conditions before data is visible for this chart."
I eventually stopped adding domains because it didn't do me any good. The 173.225.104.91 server has sent 68 emails to gmail.com email addresses thus far in January 2024. As far as I know, this block just happened today. Today was the first time it was brought to my attention that messages from this server are going into the spam folder. Again, how am I supposed to know that Google is treating this IP's reputation poorly? How am I supposed to remedy a low reputation? I set up another domain on the same 173.225.104.91 server, SPF, DKIM, and DMARC all set up (and verified with https://www.learndmarc.com). Sent a message to an @gmail.com address through this account, and it went to the spam folder. Set up the same domain on another server - 205.209.102.251 - which, coincidentally is also an Interserver IP. Again, verified that SPF, DKIM, and DMARC were all set up with https://www.learndmarc.com. I sent the same test message to the same @gmail.com address. Message came through in the INBOX without incident. What conclusions would everybody else draw? It's frustrating because none of the too big to fail email service providers have any way to test a sending IP or sending domain's reputation with their service. They block them or weigh them heavily without any method of remediation. It would be nice if I could check the reputation of my outbound IPs daily and be proactive in remedying any issues with these major email service providers, rather than have to be told by my clients that something is amiss. And then battle through a 2 week waiting period for the provider to reply back or hope that someone from the provider is on MailOps and can provide any insight.
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