Multiple delivery of the same email(s) in Outlook using POP3

[Yvonne]

I am using Outlook XP (2002) SP3 with Windows XP. Our ISP is through a DSL
and we also use Sonic Wall with Managed VirusScan (McAfee).

About 6 months one of our users started to receive duplicate emails in
outlook. Sometimes they would be received twice, sometimes they would
receive the same email message over 100 times. Sometimes the message is
spam, sometimes it is a legit email from one of our clients.

On the email server, the message appears only once, therefore outlook is
downloading the message more than one time.

Since that time, the issue has started to happen to everyone at the office,
which is 4 users networked on a LAN.

I’ve found that unchecking the “leave a copy of the message on the serverâ€
has helped the problem, but by doing this we are unable to view our emails
when away from the office.

I have created a new profile for outlook, the problem still exists. I have
increased server timeouts to 5 minutes.

I've disabled the VirusScan, still happens.

I’ve talked with our DSL provider, Sonic Wall and contacted Microsoft. They
say it is a Microsoft issue and they have no solution.

In a posting on Microsoft Technet they discussed outlook not updating its
“internal indexâ€
“If the server terminates the download process (for whatever reason),
Outlook does not update it's "internal index" and proceeds to download the
messages AGAIN during the next Send/Receive cycle. Not sure if Rules that
move the messages to another folder affect or worsen the problem.â€
http://www.microsoft.com/technet/co...&p=1&tid=d039f99a-2a3e-488c-96ad-5e7c4aba1041

Yesterday I had a computer tech consultant come to the office and he
couldn’t figure out the problem either and suggested setting up our emails
using IMAP instead of POP3. We are still testing this option out.

If there is anyone that has any idea about how to fix this I would
appreciate it.

Thanks

 

[Roady [MVP]]

The Technet description is correct. Usually this incorrect termination is
caused by a virusscanner that integrates with Outlook (see the documentation
of the virusscanner on how to disable this properly) or a misconfigured
firewall.

You can also turn on logging to see what exactly is happening during
send/receive.

--
Robert Sparnaaij [MVP-Outlook]
www.howto-outlook.com

Tips of the month:
-FREE tool; QuickMail. Create new Outlook items anywhere from within Windows
-Properly back-up and restore your Outlook data

-----
I am using Outlook XP (2002) SP3 with Windows XP. Our ISP is through a DSL
and we also use Sonic Wall with Managed VirusScan (McAfee).

About 6 months one of our users started to receive duplicate emails in
outlook. Sometimes they would be received twice, sometimes they would
receive the same email message over 100 times. Sometimes the message is
spam, sometimes it is a legit email from one of our clients.

On the email server, the message appears only once, therefore outlook is
downloading the message more than one time.

Since that time, the issue has started to happen to everyone at the office,
which is 4 users networked on a LAN.

I've found that unchecking the "leave a copy of the message on the server"
has helped the problem, but by doing this we are unable to view our emails
when away from the office.

I have created a new profile for outlook, the problem still exists. I have
increased server timeouts to 5 minutes.

I've disabled the VirusScan, still happens.

I've talked with our DSL provider, Sonic Wall and contacted Microsoft. They
say it is a Microsoft issue and they have no solution.

In a posting on Microsoft Technet they discussed outlook not updating its
"internal index"
"If the server terminates the download process (for whatever reason),
Outlook does not update it's "internal index" and proceeds to download the
messages AGAIN during the next Send/Receive cycle. Not sure if Rules that
move the messages to another folder affect or worsen the problem."
http://www.microsoft.com/technet/co...&p=1&tid=d039f99a-2a3e-488c-96ad-5e7c4aba1041

Yesterday I had a computer tech consultant come to the office and he
couldn't figure out the problem either and suggested setting up our emails
using IMAP instead of POP3. We are still testing this option out.

If there is anyone that has any idea about how to fix this I would
appreciate it.

Thanks