troubleshooting Question

Email messages get stuck in queue

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peuser asked on
SoftwareEmail Protocols
4 Comments1 Solution789 ViewsLast Modified:
All our outgoing email messages get stuck in the Queue folder under mailroot, including the auto-generated Delivery Status Notification messages.

The application server (SharePoint) and the SMTP virtual server are running on the same machine, which is a local domain member. OS is Windows 2003 with IIS 6. Generation of email messages are triggered from within SharePoint web applications.
Running the SMTPDIAG , we cannot see anything wrong (please see the results below):

Searching for Exchange external DNS settings.
Computer name is WEB2.

Checking SOA for gmail.com.
Checking external DNS servers.
Checking internal DNS servers.
SOA serial number match: Passed.

Checking local domain records.
Checking MX records using TCP: xxxxx.com.
Checking MX records using UDP: xxxxx.com.
Both TCP and UDP queries succeeded. Local DNS test passed.

Checking remote domain records.
Checking MX records using TCP: gmail.com.
Checking MX records using UDP: gmail.com.
Both TCP and UDP queries succeeded. Remote DNS test passed.

Checking MX servers listed for chuansu@gmail.com.
Connecting to gmail-smtp-in.l.google.com [209.85.216.59] on port 25.
Successfully connected to gmail-smtp-in.l.google.com.
Connecting to alt1.gmail-smtp-in.l.google.com [209.85.217.16] on port 25.
Successfully connected to alt1.gmail-smtp-in.l.google.com.
Connecting to alt2.gmail-smtp-in.l.google.com [74.125.93.114] on port 25.
Successfully connected to alt2.gmail-smtp-in.l.google.com.
Connecting to alt3.gmail-smtp-in.l.google.com [74.125.79.27] on port 25.
Successfully connected to alt3.gmail-smtp-in.l.google.com.
Connecting to alt4.gmail-smtp-in.l.google.com [209.85.129.114] on port 25.
Successfully connected to alt4.gmail-smtp-in.l.google.com.
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