[MlMt] Note that the SHA1 hash algorithm has been found to have weaknesses

[Henry Seiden]

Mat,

My experience with this issue is limited to PGP encrypted settings in MM (you can see that my settings are now working fine, coded properly for signature security settings).

You didn’t specify which encryption method is being reported or attempted in MM.

For me the process was to add some code to the settings in GPG settings because that app did not automatically enable them for MM users (and also had incorrect support advice on their web site for this issue).

Benny had some advice for me which worked perfectly and I am happy to share it with you, if your settings are likewise - for GPG encryption.

However, I defer to Benny’s expertise on other encryption methods, if any. I hope this is of some preliminary guidance for you. Otherwise contact me back.

Respectfully,

Henry Seiden
- -
Techworks Pro Co.
E: info<at>techworkspro<dot>com
W: http://techworkspro.com

On 24 Aug 2025, at 11:19, mat via mailmate wrote:

> Hello,
>
> Since I had to setup my Mac anew I get this warning when I send signed or encrypted mail.
> I have to click it away, else I can’t send.
> My keys are all RSA and at 2048 in size.
> Mailmate is: Version 2.0 (6272)
>
> Any idea what might go wrong here?
>
> Thank you
> Matthias
> _______________________________________________
> mailmate mailing list
> Unsubscribe: https://lists.freron.com/listinfo/mailmate
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