SMTP working fine in mailwizz, not with listmonk

[mihairaulea]

I have deployed listmonk using railway.app. I have configured the SMTP servers with the same credentials that i use with my mailwizz instances that are working fine.

1. Testing the connection by sending a test email works fine and listmonk says "Test message sent"
2. The email is never received, although, again, in the mailwizz instance the emails are being sent
3. Starting a campaign in listmonk works, and the campaign goes into "Finished" state with no errors logged, although again the emails are not being sent.

Can you please help me figure this out?

[knadh]

If there are no errors logged in the Settings -> Logs console, that means that the target SMTP server is accepting the e-mail, returning OK, but silently failing them after.

[MaximilianKohler]

Sorry if this is off-topic, but I'm really curious why someone would switch from Mailwizz to Listmonk. Mailwizz is a more complete program, and Listmonk is free. But if one has already paid for Mailwizz then they already have the most extensive application?

[mihairaulea]

Quality of UI. Ease of use. The ability to run it out of the box on railway.app which makes this system scalable.

I am using this for my SaaS, abillionleads.com

On Sun, Jun 4, 2023 at 6:10 PM MaximilianKohler @.***> wrote:

Sorry if this is off-topic, but I'm really curious why someone would switch from Mailwizz to Listmonk.

— Reply to this email directly, view it on GitHub https://github.com/knadh/listmonk/issues/1328#issuecomment-1575604863, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAL2Q5EIJAWSASP7W66IEVTXJSQN5ANCNFSM6AAAAAAYB2E2XA . You are receiving this because you authored the thread.Message ID: @.***>

[knadh]

Hi @mihairaulea, If Settings -> Logs shows no errors, that means the mails were successfully delivered to the upstream SMTP. Seems like the SMTP is silently discarding them for some reason. Wouldn't be possible to figure this out from the client side, unfortunately.