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[UNSUPPORTED] - SMTP Not working

Posted: Mon May 18, 2020 11:59 pm
by Fred888
Hi Everyone

I have recently migrated OpenCart from Lunix server to Windows Server (WAMP)
Also the mail settings have been changed from Mail to SMTP (

My Opencart version is and the SMTP settings are

Mail Protocol: SMTP
Mail Parameters:
SMTP Hostname:
SMTP Username:
SMTP Password: password
SMTP Port: 587
SMTP Timeout: 5

I found a strange scenario for mail function.
I always got the following errors when I register a new user. Then when I click the "back" button to register a new user again, change another email, it works fine. However when I wait for an hour and do it again. the problem has happen again.

It is an error message:
Warning: stream_socket_enable_crypto(): SSL: Handshake timed out in C:\wamp64\www\system\modification\system\library\mail.php on line 237
Notice: Error: EHLO not accepted from server! in C:\wamp64\www\system\modification\system\library\mail.php on line 254

The code on
line 237 --> stream_socket_enable_crypto($handle, true, STREAM_CRYPTO_METHOD_TLS_CLIENT);
line 253 --> if (substr($reply, 0, 3) != 250) {
line 254 --> trigger_error('Error: EHLO not accepted from server!');
line 255 --> exit();
line 256 --> }

I have no idea. How can I resolve it?