Request – Catch more sources

Hi,
This plugin idea is quite nice .. BUT it can’t catch emails sent by the quite popular “Mailer” (on themeforest) newsletter plugin.
In my configuration I had to use the SMTPauth as “plain” (it has to be done inside that plugin settings pane) https://share.getcloudapp.com/Z4uKePvG

If you could solve the way to catch those it would free my brain about that open question and start logging them more seriously.

Regards.