I just tried to send a newsletter to a list of 1700

Hi,

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 ??

thanks

Nicolas