Re: [exim/exim] smtp: allow LMTP over SSL-on-connect (PR #3238)

On Wed, 12 Aug 2026, beber via Exim-dev wrote:

> With driver smtp with protocol lmtp, delivery can be performed over
> plain text or STARTTLS is endpoint adverse it. LMTP implementation such
> as Dovecot also support implicit TLS where TLS is negotiated immediately
> after TCP handshake.
>
> This commit add a new lmtps protocol option for driver smtp to support
> LMTP delivery with SSL-on-connect.
>
> -----------
> Description
> -----------
>
> Brief description of the changes in this pull request.
>
> --------------
> Type of Change
> --------------
>
> Please delete options that are not relevant:
>
> * Bug fix (non-breaking change which fixes an issue)
> * New feature (non-breaking change which adds functionality)
> * Breaking change (fix or feature that would cause existing functionality to not work as expected)
> * Documentation update
>
> --------------
> Related Issues
> --------------
>
> Fixes #(issue number)
> Relates to #(issue number)
>
> -------
> Testing
> -------
>
> Describe the tests you ran to verify your changes:
>
> * Test A
> * Test B

I don't see these tests in the PR.

Exim has an extensive regression testing setup.
Could you copy and extend some of the existing LMTP and implict TLS
tests so that if something breaks this in the future,
it will be quickly spotted ?

Thanks,

-- 
Andrew C. Aitchison                      Kendal, UK
                    [email protected]