Problem: Outlook is sending unknown messages

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In Outlook Most of the user have problem with unknown message. Their Outlook keeps sending unknown messages.This problem seems to be most common with IMAP accounts. In many cases the messages are undeliverable and are returned to your mailbox as an NDR.

We are seeing that from users that suspect Outlook is ending Spam. Most of the users think that their computer is infected with some spyware or unknown spambot. but it's not true. it's a bug in how Outlook 2007 responds to read Receipt request for junk Email.

Mostly Spam occasionally includes requests for read receipts. In many of the cases this is so the spammer can check for valid email addresses but most of the time it’s not intentional or the spammer just wants to be doubly annoying since the sender’s address is invalid.

Sample Read Receipt ( For Example )

To: [an address you don't recognize]
Subject: Not read: [Varying Subjects]
Body:
Your message

To: [your address]
Subject: [Varying Subjects]
Sent: 9/25/2008 4:19 AM

was deleted without being read on 10/26/2008 9:21 AM.

The only difference between Read and Not Read receipts is the subject is prefixed with 'read', instead of 'not read' and the text says it was "read on [date]".

Main Causes of this issue:

Mainly in Microsoft outlook Newer Version Of Outlook offer the ability to control, If read receipts are sent but there may be a bug with IMAP accounts and read receipts in Outlook 2007. When you move messages

with a receipt request to the Junk E-mail folder and empty the Junk E-mail folder using another client, the setting in Tools, Options, Email Options, Tracking Options may be ignored.

The steps to repro are as follows:

1. Send yourself some messages with receipts requested and move them to Junk E-mail.
2. Sync with IMAP and update all folders then close Outlook.
3. Empty junk email folder using a different client.
4. Reopen outlook.
5. When outlook updates the folder, it ignores the Tracking setting and always returns receipts as it syncs the junk mail folder, purging the messages deleted from the other client.

Workaround

Until Microsoft releases a fix, do the following:

1. Always mark messages as read before emptying the Junk Email folder.
2. Always empty the Junk Email folder from Outlook.

If you Still do not want to send receipts back, set your Microsoft Outlook to never ask and never send, otherwise set Your microsoft Outlook to always ask before sending.

1 comments:

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