Re: [Hermesmail-discuss] 10054 intermittant error

[Jason S. <ja...@sh...>]

Hello whoever you are.

Rest assured, the issue you're seeing is not one related to Hermes or 
Eudora per se. Instead, it's a general issue as seen from time to 
time by many users of OpenSSL. OpenSSL is the software on your 
provider's server that is responsible for the encryption element of a 
TLS mail exchange session.

In particular, that error can show up in log entries on the server 
side of a TLS connection. What it means is that there was a problem 
keeping the encryption stream stable between the two endpoints. This 
is normally due to intermittent network problems (perhaps 
lost/dropped packs or TCP issues) which affect the message 
authentication context (mac) of the TLS session. It can also be 
caused by any software or processes that scan TLS sessions such as 
anti-virus or organization-wide network security appliances that 
attempt to decode TLS sessions in real time.

The problem is likely somewhere in the network layer. You should 
definitely run some network integrity checks between you and your provider.

Jason




At 05:11 PM 09/01/2021, you wrote:

>My provider has provided a couple of log entries relating to my 
>issue.  Has anyone seen this type of problem?
>
>Dec 17 20:28:24 pb-smtp21 postfix-sasl-smtpd[80996]: [ID 947731 
>mail.warning] warning: TLS library problem: error:1408F119:SSL 
>routines:SSL3_GET_RECORD:decryption failed or bad record mac:s3_pkt.c:535: 2:49
>Dec 17 20:28:24 pb-smtp21 postfix-sasl-smtpd[80996]: [ID 197553 
>mail.info] lost connection after DATA (5739 bytes) from unknown[x.x.x.x]