Mail using 173GBs of Application Memory: Part 2

So we meet again on a similar issue 😀

Perhaps the issue is related to below and from the supplied report above

com.smallcubed.mailsuite.helper.plist (Apple - installed 2023-02-09)

Command: zsh -c '$HOME/Library/Application Support/com.smallcubed.suite/SmallCubed Suite Helper.app/Contents/MacOS/SmallCubed Suite Helper'

Location: /Applications/SmallCubed MailSuite.app

https://smallcubed.com/

I think P. Phillips is correct. Apple Mail doesn't really support plug-ins. That hasn't stopped developers from writing them. Apple even introduced an official Mail plug-in API, but it is very limited. I don't know if anyone uses the official API. Uninstall that software and see if that corrects the problem.

This is Not Intended to be flippant response.

Perhaps it is time to >>

1 - Find another e-mail Client that will work better with this Specific Mail Plug-in

2 - Abandon this Plug-in and find one more suited that works better with Apple Mail Application.

3 - Find another e-mail Client with More Features and does not require this Plug-in at all

There are several more full bodied e-mail Clients with more Builtin Features than Apple Mail

EDITED

Spark, Thunderbird, Airmail to name a few who jump to mind.

I personally have never used any on macOS but used Thunderbird in Microsoft Windows before I when Exclusively macOS

You are in very good hands with the suggestion from @etresoft

Not because they seem to agree with my possible solution but because they are very knowledgeable on such matters

Way more so than I