Even if I've more then 10 years of practice in Linux servers, including postfix, I'm very very new in Zimbra ... less then one week ! The config is very unusual for me so sorry if I've stupid questions.
I've installed, without any problem, a Zimbra (zcs-5.0.0_RC2_1745.DEBIAN4.0.20071120152822) on a fresh Debian's Etch.
All seem to work fine except that all users I've created are unable to send any mail neither on the localhost nor to an external one. Admin can for both directions !
The error message is :
Could not send message: mail.SEND_FAILURE msg: SMTP server reported: null
data: [object Object]
What did I miss ?
Best regards and Merry Xmas !