how_to:duplicated_messages
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| how_to:duplicated_messages [2015/09/23 13:46] – external edit 127.0.0.1 | how_to:duplicated_messages [2017/01/16 10:21] – [Duplicated Messages] paul | ||
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| ======Duplicated Messages====== | ======Duplicated Messages====== | ||
| - | If you get duplicate messages | + | If you get duplicate messages, then there are several common reasons for this: |
| =====Multiple POP3 mailboxes on the ISP===== | =====Multiple POP3 mailboxes on the ISP===== | ||
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| =====Multiple Copies of VPOP3 running===== | =====Multiple Copies of VPOP3 running===== | ||
| Using the **Processes** list in Windows Task Manager, make sure you do not have more than one copy of **VPOP3.EXE** running. (Click on the **Show Processes for all Users** button/box if there is one). | Using the **Processes** list in Windows Task Manager, make sure you do not have more than one copy of **VPOP3.EXE** running. (Click on the **Show Processes for all Users** button/box if there is one). | ||
| + | |||
| + | =====Internal messages being received multiple times===== | ||
| + | Some email clients (eg Microsoft Outlook) will silently resend messages if they don't receive a response from the mail server soon enough. This can lead to it resending a message many, many, times. This is most likely to happen with large messages and/or messages to many local recipients, because of the time taken to process these messages. | ||
| + | |||
| + | To try to alleviate these problems, some things to check are: | ||
| + | * make sure that VPOP3 is working as fast as it can - eg by regularly defragmenting the VPOP3 server hard disk (unless it's an SSD). | ||
| + | * check any virus scanner on the sender' | ||
| + | * increase the timeout in Outlook (in the email account' | ||
| + | * if the problem is when sending to a large number of local users, then consider using a Mailing List in VPOP3 instead of a distribution list or just CCing lots of people. VPOP3 processes Mailing Lists in the background so it responds to the email client much quicker. | ||
| =====Other causes===== | =====Other causes===== | ||
how_to/duplicated_messages.txt · Last modified: 2018/11/14 10:45 by 127.0.0.1
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