I have Zimbra 5.01GA FOSS on Ubuntu 6.06LTS. When I try sending mail from my PDA using the SMTP server (zimbra) I get the following error message:
Feb 8 22:06:24 mail postfix/smtpd: NOQUEUE: reject: RCPT from apn-89-223-245-75.vodafone.hu[188.8.131.52]: 554 5.7.1 <firstname.lastname@example.org>: Relay access denied; from=<email@example.com> to=<firstname.lastname@example.org> proto=ESMTP helo=<Inbox>
How can I enable zimbra to accept the SMTP connection? I think if I were to enable SSL it might work. The PDA is a WindowsMobile6.
Can anyone help me?