Error [ERR_UNHANDLED_ERROR]: Unhandled error. ('socket timeout waiting on quit')

[tabascoterrier]

Describe the bug

I had a few Haraka process crashes the other day over the space of about an hour, with an error I'd not seen before. Presumably caused by a particular destination server misbehaving for a while, and the error hasn't occurred again since, so it seems to be a very rare occurence.

Sadly I can't pin it down to a particular server or reproduce it, however I was hoping it might be related to / shed some light on #2807

Expected behavior

Haraka to handle the error gracefully

Observed behavior

Haraka process crashes with this error

{"level":"CRIT","uuid":"-","origin":"core","message":"Error [ERR_UNHANDLED_ERROR]: Unhandled error. ('socket timeout waiting on quit')"}
{"level":"CRIT","uuid":"-","origin":"core","message":"    at pluggableStream.emit (node:events:508:17)"}
{"level":"CRIT","uuid":"-","origin":"core","message":"    at pluggableStream.<anonymous> (/usr/lib/node_modules/Haraka/outbound/hmail.js:394:20)"}
{"level":"CRIT","uuid":"-","origin":"core","message":"    at Object.onceWrapper (node:events:633:28)"}
{"level":"CRIT","uuid":"-","origin":"core","message":"    at pluggableStream.emit (node:events:519:28)"}
{"level":"CRIT","uuid":"-","origin":"core","message":"    at TLSSocket.<anonymous> (/usr/lib/node_modules/Haraka/tls_socket.js:93:18)"}
{"level":"CRIT","uuid":"-","origin":"core","message":"    at TLSSocket.emit (node:events:519:28)"}
{"level":"CRIT","uuid":"-","origin":"core","message":"    at Socket._onTimeout (node:net:590:8)"}
{"level":"CRIT","uuid":"-","origin":"core","message":"    at listOnTimeout (node:internal/timers:573:17)"}
{"level":"CRIT","uuid":"-","origin":"core","message":"    at process.processTimers (node:internal/timers:514:7)"}

Steps To Reproduce

Unable to reproduce

System Info

Haraka	Haraka.js — Version: 3.0.3
Node	v20.13.1
OS	Linux 5.15.0-117-generic #127-Ubuntu SMP Fri Jul 5 20:13:28 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
openssl	OpenSSL 3.0.2 15 Mar 2022 (Library: OpenSSL 3.0.2 15 Mar 2022)

Additional context