Sending test campaigns doesn’t work

Just tried with the new version, no luck unfortunately.

Sure, here you go:

These are my provider settings, PHP mail is off and custom SMTP is active: https://www.dropbox.com/scl/fi/ggwuxnzfcmxx1dqkdcxxo/Screenshot-2026-01-09-at-13.52.56.jpg?rlkey=cp1pr6974yjynz3sdwfbtp7pt&dl=0

Sending a test mail within campaign (not working):

MailerPress > New campaign
name: test
Subject: January update
Select an existing list
-> Next

Select default template
-> Next

-> Create Campaign

-> Preview & Send
Sending mode: Test

Enter e-mail
-> Send a test

Result:
Success message is shown.
Mothing in PHP error logs, no e-mail in inbox/spam folder.

Sending a test mail within provider settings (working):

MailerPress > Settings > Providers
Custom SMTP > (three dots) > Send a test email

Enter e-mail
-> Send

Result:
Success message is shown.
Test e-mail promptly arrives in my inbox.

Hi Benjamin, I ran some tests on 1.4.0 today:

Sending a test campaign using PHP Mail works.

Using Custom SMTP, it doesn’t work. Again, when I send a test mail on the Integration settings screen, this provider does work. Just not in the test campaign screen.

This is on a live site, my web hosting provider is hetzner.com.

Yes, it is the primary ESP and the only one that’s active.

Yes I do, but I just tried using the empty e-mail template without any merge tags, and this test also fails.

No change, unfortunately. I’m using the free version.