Sending Bouncing with SMTP Error: The following recipients failed

ℹ️ Support
1

I have added some subscribers to test the bounce rules, but I’m not able to send them emails as the processqueue returns:
“Error sending email to blabla@domain.com SMTP Error: The following recipients failed: blabla@domain.com: sorry, user unknown”

What could I do, that PHPList automatically adds these email addresses to be blacklisted?

Thanks for any help.

2

Sounds like your SMTP server received that error from the remote mail server. Sure that the addresses are correct?

3

The addresses are fake, as I’m testing configuration of my PHPList installation.
I guess I need to enable some kind of email validation to see what happens if someone enters fake email addresses.
Will post the final settings here.

4

You can use this plugin to ban disposable email addresses: https://github.com/phpList/phplist-plugin-disposablemailblock

There’s no good way to strictly validate that email addresses are valid as far as I’m aware.

5

Thanks for the suggestion!

6

Right now I haven’t found any automatic solution for dealing with failed sending emails and stopping the retry automatically. As I read PHPList maybe able to handle it, if not I will receive the processing log by email and could stop the process manually.