Need help from gmail users. Emails kicking back with 535 and 550 error messages. Support can't solve.
Not all, but a few emails I send from my inmotion hosted domain randomly come back with 535 incorrect authentication and 550 high probability of spam errors. These are one-to-one emails with no suspicious text or links. Some are even part of threads in progress. Makes no sense as all authentication settings in gmail are correct (double confirmed with inmotion). I have been submitting tickets for 3 or 4 months and get a variety of answers, NONE of which have solved the issue.
One of my clients just informed me that they are unable to send me emails from their account. It worked up until last night. I also have an email account on their domain and am having the same problem. Here is the response that I'm getting.
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:
[email protected]
SMTP error from remote mail server after RCPT TO::
host blainemountaintech.com [74.124.194.209]:
550-Verification failed for [email protected]
550-No Such User Here
550 Sender verify failed
Please advise and let me know what I can do. Or if it is on their end I can deal with their host.
FYI, they are not having any issues sending emails among themselves, or to other domains... Just mine.
Thanks!!
Nick
EDIT: I just realized that the other email address didn't post when I pasted the rest of the information.. added "550-Verification failed for [email protected]"