Add external transactional endpoint (#1108)

[Facecube]

Hello @knadh,
I am tagging you because you were also involved in the linked issue.

I decided to create a proposal implementation that allows external mails to be sent.
I implemented it as a separate endpoint in order not to interfere with the existing transactional endpoint.
I tested it locally and it seems to work for me.

Prior to this PR I have not written a single line of go, so please go easy on me :).
Looking forward to your feedback and I am happy to make changes, as I really would like to see this feature added to listmonk.

[knadh]

Hi @Facecube. I missed reviewing this last month in the middle of the v3.0.0 release I think. Will look into this sometime in the coming weeks.

[ugd]

@knadh, I forked the @Facecube solution, merged with the current release, set it up in a Docker container, and successfully deployed it in production; it has already sent around 60 emails. A useful enhancement would be to add a page for viewing the logs of sent emails.

[Facecube]

@ugd there is a logs page in the settings submenu.
But I assume you mean that you want some sort of list view of emails sent, where you can maybe even see the message body, etc.
But cool to see that my changes are actually usable 😆

[ttphi88]

Hi @knadh
Do you mind reviewing this PR (as the author said he did not have experience with Go) and releasing this feature?
Thank you very much.

[knadh]

Hi @ttphi88. It's on my list to review and address after the upcoming v4.0.0 release, which involves serious, significant changes.

[ugd]

Any updates for v4?

[waza-ari]

Based on the most recent commits and the RCs that have been published, I’d say it’s close. If I understood it correctly, it involves quite significant changes including authentication and permissions, so it takes a bit longer to get everything right. I’m just another user though, so keep that in the back of your head reading my comment

[ugd]

Based on the most recent commits and the RCs that have been published, I’d say it’s close. If I understood it correctly, it involves quite significant changes including authentication and permissions, so it takes a bit longer to get everything right. I’m just another user though, so keep that in the back of your head reading my comment

far as i understood, the significant changes are for the v4 release in terms of features, and that moment was inappropriate to concentrate in another new feature 🤔 and maybe this feature will be added after the changes that was in progress will be done