Ok, this is a bit off but wondering if someone has seen this before.
I have a 7400 4.98 svmi20i
The email gateway, about once a day, though not at a consistent time produces this error"
WARNING - SMTP '.' command failed. Server (]server address redacted) Response '550 5.7.1 Invalid sender address. ([email protected]
I have a mailbox that the day before sends a voicemail fine, and the day after, also sends a voicemail without error. Same mailbox. No change in settings.
Consistent SMTP info in sys params, mclass and the email gateway for the mailbox itself.
I cannot for the life of me find "[email protected]
" in any field anywhere.
It is not always the same mailbox that gets the error.
The client has a smtp relay going so it is on port 25 with no username or password required or used.
Help me hive mind, you're my only hope.