On 06/12/21 14.32, Dedet Saputra wrote:
Mohon bantuan juga untuk error Socket error sending response to DATA :


Mon 2021-12-06 11:08:03.801: Performing DKIM verification
Mon 2021-12-06 11:08:03.801: * File: d:\mdaemon\queues\temp\md5001000127868.tmp
Mon 2021-12-06 11:08:03.801: * Message-ID: 
<paxpr09mb5086fe91f80129cb659fc9f0f2...@paxpr09mb5086.eurprd09.prod.outlook.com>
Mon 2021-12-06 11:08:04.018: * DKIM-Signature 1: v=1; a=rsa-sha256; 
c=relaxed/relaxed; d=leschaco.com; s=selector1; <some tags are not logged>
Mon 2021-12-06 11:08:04.018: * Verification result: good signature
Mon 2021-12-06 11:08:04.019: * Result: pass


Proses DKIM verification nya kelamaan.
Kalau saat itu ada banyak incoming mail session bisa menyebabkan incoming DATA transfer lambat yang berakibat sender time out.

Upgrade ke MD 20.5 atau yang terbaik upgrade ke v21.5.1.

https://www.altn.com/Support/SecurityUpdate/MD111221_MDaemon_EN/


Summary
Vulnerabilities in MDaemon for Denial of Service (high CPU usage) related to
DKIM verification and Webmail (WorldClient) XSS (cross-site scripting) were
identified during routine testing or related to bug reports.


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syafril
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Syafril Hermansyah

MDaemon-L Moderator, run MDaemon 21.5.1 64bit
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