hello, we are getting notifications when sending email since two days, before we had the problem sometimes, but it solved itself after waiting some moments.
the notifiaction we get is:
[SMTP] Kan het bericht (‘Van’ met het veldadres ‘[email protected]’ dat niet is geaccepteerd om de volgende reden(en):
"5.5.0 SMTP protocol violation: A mail transaction is already in progress. See RFC 5321, section 4.1.1.2 and 4.1.4
") niet verzenden.
i get the same message with my mailaccount
I checked the IMAP(= port 143)and SMTP( port = 25)
we have our emails from em client, we are using windows 7, we checked: we had no update taken place, our internetprovider is t MOBILE.
What can i do now?
plese Help!
Ingrid
I can add: this is how we have managed the authification:
ingrid