My Mautic version is: v3.2.1
My PHP version is: 7.3.25
My problem is:
I can’t send email.
Test connexion is Ok.
We use SMTP pepipost, we can send from pepipost.
But When using “send email test” we have the following error message :
These errors are showing in the log:
Expected response code 354 but got code “554”, with message "554 5.5.1 Error: no valid recipients "
Steps I have tried to fix the problem:
I check the password etc everything is ok.
No idea where to looking for