==== Required information ====
- iRedMail version: v1.8.1 (MySQL)
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Linux/BSD distribution name and version: Centos
- Related log if you're reporting an issue:
====
Hi all ,
When I sent mail to a group mail I get the return message "Delivery has failed to these recipients or groups" #< #5.1.1 X-Postfix; unknown user: "ngoc"> #SMTP# . I have checked that group many times , it's not content "ngoc" user , "ngoc" user doesn't even exist on my system .
Here is my error message :
Delivery has failed to these recipients or groups:
UMDM@mydomain.com ####### the mail group
The e-mail address you entered couldn't be found. Please check the recipient's e-mail address and try to resend the message. If the problem continues, please contact your helpdesk.
Diagnostic information for administrators:
Generating server: mail.mydomain.com
UMDM@mydomain.com
#< #5.1.1 X-Postfix; unknown user: "ngoc"> #SMTP#
Original message headers:
Return-Path: <mymail@mydomain.com>
Received: from localhost (localhost [127.0.0.1])
by mail.mydomain.com (Postfix) with ESMTP id ADAFF340EAA
for <ngoc@mail.mydomain.com>; Tue, 24 Feb 2015 14:48:01 +0700 (ICT)
X-Virus-Scanned: amavisd-new at mail.mydomain.com
Received: from mail.mydomain.com ([127.0.0.1])
by localhost (mail.mydomain.com [127.0.0.1]) (amavisd-new, port 10024)
with ESMTP id bZC1z_Tflctk for