Parallels Virtualization and Automation Software

SYMPTOMS

Sent email return with the error:

MailEnable: Message delivery has been delayed.

RESOLUTION

This message means that the SMTP connector is not configured correctly. The following setting should be correctly setup:

Mail Enable Administrator > Servers > localhost > Connectors > SMTP > Properties

1. DNS server should be valid. It must resolve any correct host name.

2. Fully Qualified Domain Name (FQDN) should be properly resolved in DNS.

3. Bound IPs for SMTP should have correctly resolvable PTR DNS records (Mail Enable Administrator > Servers > localhost > Connectors > SMTP > Properties > Inbound tab)
This can be checked using http://www.dnsstuff.com

Go to Reverse DNS lookup section and type your IP(s) that are bound by SMTP. Request should return a valid host name or domain.

4. If these parameters are set up correctly, the file should also be correct:
 
"%plesk_dir%\Mail Servers\Mail Enable\Config\ADDRESS-MAP.TAB"

The first line should be the following:


5. Check, if your server can access remote SMTP servers.

You can check it using telnet tool


Connection output should be similar.