bug: neomutt silently requires smtp.tls.enable or smtp.tls.useStartTls

[jedesroches]

Are you following the right branch?

• [X] My Nixpkgs and Home Manager versions are in sync

Is there an existing issue for this?

• [X] I have searched the existing issues

Issue description

Hi, thank you for your work on the neomutt home-manager module!

When setting up email using neomutt only as a MUA, the neomutt module requires one of smtp.tls.enable or smtp.tls.useStartTls to be set. This is:

1) Not documented anywhere and, if the behavior is kept, should be documented 1) Not validated by an assertion, and so the error message that the user gets (error: value is null while a set was expected) is pretty obscure and some source code reading is required to figure out what went wrong 1) This is probably not the desired behavior anyway, since if neomutt is only used as an MUA and other programs are used for IMAP and SMTP (which is the setup I'm going for), then neomutt should not care for TLS or any sort of network connection.

I believe this is a bug that was introduced in the last commit.

Minimal example to reproduce:

{ config, ... }:

{
  home-manager.users.${config.user} = {

    programs = { neomutt.enable = true; };

    accounts.email = {
      accounts.mymailaccount = {
        primary = true;
        neomutt = {
          enable = true;
          sendMailCommand = ''echo "Mail sending is disabled on this host"'';
        };
      };
    };
  };

Maintainer CC

@fpletz @rycee

System information

- system: `"x86_64-linux"`
 - host os: `Linux 6.1.69, NixOS, 23.11 (Tapir), 23.11.2561.b0b2c5445c64`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.18.1`
 - channels(root): `"nixos-23.11"`
 - nixpkgs: `/nix/var/nix/profiles/per-user/root/channels/nixos

[fmahnke]

I just started using home-manager and came across this yesterday. I wrote a patch and came here to find the issue was already open. The patch allows the neomutt configuration to build when either or both of accounts.email.accounts.<name>.passwordCommand and accounts.email.accounts<name>.smtp are at their default null values. Does this seem like a good approach?

[stale[bot]]

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[jedesroches]

@fmahnke : I guess you could open a PR with the patch maybe ?