Not sending WHMCS email in SMTP

[heberq]

Hello people,
My WHMCS stopped sending email after I uploaded it on CWP7.
I am using SMTP protocol to send my emails, no version of PHP solved my problem, everyone is giving the same error.
I go to the WHMCS log and it really confirms that no email is being sent by CWP7.

If anyone can help me, I will be very grateful
Thank You

Heber Queiroz

[josemnunez]

Search the whmcs error logs, the cause must be indicated there