Resolve #1813

Author: the-djmaze

snappymail/v/0.0.0/app/libraries/MailSo/Smtp/SmtpClient.php

@@ -203,7 +203,8 @@ public function Login(Settings $oSettings) : self
 					$SASL->verify($sResult);
 					// Now end the authentication
 					$sRequest = '';
-					$this->sendRequestWithCheck($sRequest, 235);
+					$this->sendRaw($sRequest, true, '');
+					$this->validateResponse(235, '');
 				} else switch ($type) {
 				// RFC 4616
 				case 'PLAIN':