No download with POP3
Problem reported by Lennart Eliasson - 5/18/2022 at 2:02 AM
SM 15.7
We have a customer who uses POP3.
On one computer they have 5 email accounts.
4 accounts works normally.
One of the accounts does not download the email.

There will be error messages:
Exception: (PooledTcpItem.cs) Unable to read data from the transport connection: An established connection was aborted by the software in your host machine.
StackTrace: at System.Net.Sockets.NetworkStream.BeginRead(Byte[] buffer, Int32 offset, Int32 size, AsyncCallback callback, Object state)

How can we solve this problem?

3 Replies

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Kyle Kerst Replied
Employee Post
Hey there Lennart, sorry to hear you're having these POP issues! Since the user has several other working accounts in this client (I'm assuming all on the same server?) this would lead me to believe there may be an underlying profile issue involving that particular account in the user's email client. If they sync their account to a different email client on another machine (make sure to turn on leave on server so it doesn't remove their email!) does it throw the same errors?

The reason I ask is because POP is a one-way sync protocol, so once the email is downloaded there is no further server interaction at that point. Now, if the error is happening while they are POP'ing down their email there may be a message in the Inbox currently that is corrupt or otherwise problematic. Please don't hesitate to submit a ticket with us if you need a hand! I hope this helps :)
Kyle Kerst System/Network Administrator SmarterTools Inc. (877) 357-6278 www.smartertools.com
Lennart Eliasson Replied
Ok. Thanks @Kyle
As a matter of fact they have managed to download again after manually deleting all in Inbox.

What curruption could it be?
A mail with a virus?
Kyle Kerst Replied
Employee Post Marked As Resolution
You're very welcome Lennart, happy to lend a hand. It sounds like they definitely had a message in there that was causing us trouble. It could be a malicious message as you've noted, a lot of the time antivirus programs don't do a great job at cleaning the message content and you end up with a broken EML. Let us know if you need any help tracking it down in the future. Have a good one!
Kyle Kerst System/Network Administrator SmarterTools Inc. (877) 357-6278 www.smartertools.com

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