====== Multiple Copies of E-Mail Messages ======

A common issue for users of Microsoft mail clients (Outlook, Outlook Express) is multiple copies of messages showing up in your Inbox with no obvious reason.

===== Leave Messages on Server =====

The most common cause of duplicate messages may be the option to ''Leave Messages on Server''.  If you set the ''Leave Messages on Server'' setting to more than 5 days, you will almost certainly experience terrible bouts of duplicate messages sooner or later!

Adjust this setting to 5 or fewer days like this in Outlook:

**Tools -> E-Mail Accounts -> View or Change... -> Change -> More Settings -> Advanced**

If ''Leave Messages on Server'' is checked, make sure the ''Remove From Server'' setting is 5 or less.
Rules Processing

===== Message Processing Rules =====

Another common cause of multiple messages are misconfigured E-Mail Rules.  Check for this in Outlook by clicking:

**Tools -> Rules and Alerts**

Check each rule to verify the proper logic.

===== Forwarding =====

Improper forwarding can also result in duplicate messages.  Make sure you have not configured an account or a mail client to forward messages in an illogical fashion.