I just tried to send a newsletter to a list of 1700 subscribers using gmail as outgoing email smpt sever.
connexion test was OK
the first 500 emails were successfully sent
and now the sending is stopped and I get the following error message each time I try to continue it:
"Error sending email. Please check outgoing email settings."
Il don't find any other explanation in my /var/log/maillog nor in my php error logs
Do you have an idea of what could cause this error ??