Mail client Configuration

This section will include how to get the best out of the Mail client program and web browser Zimbra interface.

Zimbra Web Client

The technology used to make the Zimbra web interface what it is can be accelerated through tuning your client system.

Indeed sometime the web client will not even run, if for instance java is not installed on the client.

Essentially use firefox which is quicker than Internet explorer and install the Sun Java rather than the Microsoft Java on your PC.

Thunderbird and Zimbra

Outlook and Zimbra

SMTP over SSL port 465

Note: some version of Outlook may not need this. This is what is needed for Outlook 2003 SP2.

  • In /opt/zimbra/postfix/ uncomment the following line:
#smtps    inet  n       -       n       -       -       smtpd
  • Restart/Reload postfix
zmmtactl reload

You now have port 465 open for SSL SMTP. Make sure any firewall in place doesn't prevent access to the port.

In Outlook:

  • add a new email account, type of either IMAP or POP, whatever you prefer.
  • In the advanced settings configuration screen, enable SMTP over SSL (This server requires encrypted connection (SSL)).
  • Also make sure to enable IMAP or POP over SSL.
  • Change the SMTP port to 465
  • Enable SMTP Auth using the same credentials as IMAP

That should be all thats needed. Outlook doesn't deal well with SSL on port 25 using the STARTTLS command. It prefers immediate SSL negotiation followed by SMTP (old style SMTP over SSL)

Eudora and Zimbra

Eudora 6.x cannot read aliases (subjectAltName) attached to a cert.

Some possible workarounds available are 1) to use clear text authentication, 2) use the server's real name 3) upgrade to Eudora 7

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