[MlMt] gpg best practice

[Eric Sharakan]

Hi Oliver, FWIW I get my 'gpg' utility and related tools from 
https://gpgtools.org, rather than Homebrew.  It all just works with 
MailMate, no need for symlinks or other workarounds.

This is what it reports about itself:
```
esharaka% where gpg
/usr/local/bin/gpg
/usr/local/MacGPG2/bin/gpg
esharaka% gpg --version
gpg (GnuPG/MacGPG2) 2.2.41
libgcrypt 1.8.10
Copyright (C) 2022 g10 Code GmbH
License GNU GPL-3.0-or-later <https://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Home: /Users/esharaka/.gnupg
Supported algorithms:
Pubkey: RSA, ELG, DSA, ECDH, ECDSA, EDDSA
Cipher: IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH,
         CAMELLIA128, CAMELLIA192, CAMELLIA256
Hash: SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
Compression: Uncompressed, ZIP, ZLIB, BZIP2
```

-Eric

On 21 Jan 2025, at 16:52, Ben Hyde wrote:

> Oliver, thanks for looking at my problem.  More details follow.  That 
> said I sense the answer to my question is “Nope there isn’t…”
>
> I get emails from many vintage correspondents who sign all their 
> emails.  That triggers MailMate to complain it can’t find the 
> /usr/local/bin/gpg.  That opens pops top off a barrel of monkeys and a 
> flash back to having solved this in past lives.
>
> So things come to mind…
>
> 1. “Gpg” eh?  What about “gpg2” … my memory is that last 
> time I did this I used gpg2.
> 2. “/usr/local/bin” eh?  I thought the brew folks moved to 
> /opt/homebrew/bin on Apple Silicon.
> 3. I seem to remember solving this, at last once, with a symbolic link 
> to where I found gpg installed, but that was a longtime ago.
> 4. I did happen upon a posting in this mailing list, maybe a year (or 
> two) old that mentions setting an environment variable to help guide 
> Mailmate to this exceubable.
> 4a.  Of course mailMate runs as a child/spawn, of launchd.  Luck me I 
> already know how to set environment variable in launchd for this kind 
> of thing.
> 4b. Then I found an email that mentioned using “defaults set” to 
> inject this info into mailmate
>    defaults write com.freron.MailMate environmentVariables -array 
> '{enabled = :true;  name = "MM_GPG"; value = "/opt/homebrew/bin/gpg"; 
> }'
> 5. I don’t see info. About this in recent mailing list content.
>
> So at point I seemed reasonably to ask if this was written down 
> someplace.
>
> If not, I’ll just kick it until something works :)
>
>   - ben
>
>
> On 20 Jan 2025, at 3:03, Oliver Sturm via mailmate wrote:
>
>> I hadn’t actually tried it since I started using MailMate, since 
>> PGP doesn’t come along too often for me these days. So I was 
>> curious, I tried it and it works correctly. This is an M4 Mac, so 
>> unless you’re referring to a problem specific to the M2 I wonder 
>> what it is?
>>
>> Screenshots:
>>
>> [ "2025-01-20-001473 at 2x.png" ]
>>
>>
>> [ "2025-01-20-001474 at 2x.png" ]
>>
>>
>>
>>
>> On 19 Jan 2025, at 19:38, Ben Hyde wrote:
>>
>>> I’m moving over to a new M2 Mac.  So PGP encryption stopped 
>>> working.
>>>
>>> I see plenty of discussion about this the archives of this esteemed 
>>> mailing list.
>>>
>>> Is this documented some place?  - ben
>>>
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