Nicholas Blumhardt

3.0.0-dev-* updates the project to MailKit 4; now on NuGet but needs some testing and feedback as quite a bit of surgery was done :-) - all help appreciated!

[Port configuration](https://github.com/serilog/serilog-sinks-email/blob/dev/src/Serilog.Sinks.Email/LoggerConfigurationEmailExtensions.cs#L66) went in with 3.0; sorry about the lack of response on this @ArnaudB88, this project was low on maintainer time for a long stretch and things got shifted...

I think you may need to remove the spaces after the commas/semicolons. This looks like a bug, would be great to confirm.

Thanks for the ping! Agreed - if anyone's able to send a PR (and check that everything still works as expected with the new MailKit version) I can review/merge 👍

Hi @nCubed! Thanks for checking it out. RE SmtpClient vs MailKit: I think the main issue with switching will be breakage - if it's possible to leave the older frameworks...

Thanks for the reply! By "breakage" I mean that `SmtpClient` delivery behavior is different from MailKit's, especially around TLS certificate acceptance, so it's more a question of the impact of...

Hi all! The TFM list for Serilog 3 (up soon!) will be: ```xml net462;net471 $(TargetFrameworks);netstandard2.1;netstandard2.0;net5.0;net6.0;net7.0 ``` This might be the right time to make some breaking changes and drop the...

Hi @chekm8 - I think all of the pieces are in place now for this to go forward (Serilog 3 is out), so the timeframe will come down to someone...

Done now in 3.0.0-dev. The package needs some testing/feedback/minor work to get going smoothly with System.Net.Mail.SmtpClient removed - all help appreciated.

Thanks for the nudge, I'll loop back to this and take a look ASAP 👍