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IMAP sensor : socket error 10054

Modified on 2025-06-10 13:39:05 +0200

I am sending mail out our company email to gmail for the IMAP sensor.

The sensor works but alternates between up and down.

When it's down it reports this error,

Sending Mail: Socket Error # 10054 Connection reset by peer.

I have also tried IMAP with Outlook (Hotmail) and get the same error.

How do I fix the socket error?

PRTG Version PRTG Network Monitor 14.3.10.2421 Auto-Update Status Version 14.3.10.2421 successfully installed Operating System Windows Server 2012 (6.2.2 Build 9200 ), 2 CPUs (Double x64 Model 1 Step 0), code page "Windows-1252", on VMware

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Hello

"Connection reset by peer" suggest that something is blocking your request.
This could be firewall on your PRTG server, firewall/switch on your network, mail servers firewall or the mail server itself.

1) Try to increase the scanning interval and timeout values of the IMAP sensor
2) Try if IMAP works from your PRTG server with a email client, i.e. Thunderbird

---------------------------------------------
Jens Tore Fremmegaard, ServerParkering AS
Paessler Certified Monitoring Professional

Aug, 2014 - Permalink

Disclaimer:
The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.

IMAP sensor : socket error 10054

Article CommentsAttention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.

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Attention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.