Zimbra Global Settings:
Enable authentication: yes
TLS authentication only: yes
On PDA (T-Mobile MDA Vario) for SMTP:
SSL required: yes
Authentication required: yes
Independent settings: no (uses POP3).
Today's experience:
1st try - connected PDA using GPRS, send message successfully. From var/log/zimbra.log is obvious that successfull TLS connection has been established, message received and then send outside.
2nd try - right after 1st try without disconnecting GPRS I send another message. It bounced back. In var/log/zimbra log is this:
connect from ...customers.t-mobile....
NOQUEUE: reject: RCPT from ...customers.t-mobile...: 554 <...>: Relay access denied; from=<..> to=<...> proto=ESMTP helo=<Inbox>
So it looks like it is rejected without even trying to establish TLS but why? Is Zimbra to blame or the PDA?
And repeated question - is there a way to turn on SMTP auth logging so that would be seen if SMTP username/password has been passed?
Thanks, Petr |