Thanks for your reply. I looked through those posts, but couldn't find an answer. I'm using gmail SMTP to send my email and Gmail seems fine with my authentication/authorization. When I look at the headers of the email, it passes SPF, DKIM, and the other checks mentioned in those posts. I'm not sure why my emails are being blocked all of a sudden and what the rules are that I need to follow for them to work successfully with the tmomail.net service. Thanks again for your help!
From what I read, it appeared that there was some learning/training to identify good/bad inbound messages. Since it's something on the backend, probably out of scope for a customer facing support portal. Did you try the enterprise support that was referenced? Wonder if any of the @tmo_ users can comment...
I'm not sure why it stopped all of the sudden, but as j.a.r.v.i.s mentioned, you aren't the only one this is happening to. I just chatted with one of our Engineers regarding this and here are a few things he recommended trying:
- If you're a DIGITS user, we recommend installing the app on your phone. Messages are successfully being sent and received through the app.
- If there's an option for the email to be sent via HTML format, it should force the email to stay as MMSC. I know this option isn't always available especially if it's coming from a larger company such as your home automation system.
If neither of these workarounds work, the next step would be to contact Tech Support and file a ticket with them. The more tickets that are filed, the easier it is for our Engineers to determine why this is happening.
Having same problem. Started last week.
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
host d79033b.ess.barracudanetworks.com [220.127.116.11]
SMTP error from remote mail server after end of data:
550 permanent failure for one or more recipients (+email@example.com:blocked)
I've had no problems for many years....except when sending a url. I have to remove http.