2018-12-18 14:46:04 Connection: opening to smtp.gmail.com:587, timeout=300, options=array ( 'ssl' => array ( 'verify_peer' => false, 'verify_peer_name' => false, 'allow_self_signed' => true, ),)
2018-12-18 14:46:04 Connection: opened
2018-12-18 14:46:04 SERVER -> CLIENT: 220-localhost.localdomain ESMTP Exim 4.91 #1 Tue, 18 Dec 2018 09:46:04 -0500 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.
2018-12-18 14:46:04 CLIENT -> SERVER: EHLO dl.cdmusic.ir
2018-12-18 14:46:04 SERVER -> CLIENT: 250-localhost.localdomain Hello dl.cdmusic.ir [185.49.87.133]250-SIZE 52428800250-8BITMIME250-PIPELINING250-AUTH PLAIN LOGIN250-STARTTLS250 HELP
2018-12-18 14:46:04 CLIENT -> SERVER: STARTTLS
2018-12-18 14:46:04 SERVER -> CLIENT: 220 TLS go ahead
2018-12-18 14:46:04 CLIENT -> SERVER: EHLO dl.cdmusic.ir
2018-12-18 14:46:04 SERVER -> CLIENT: 250-localhost.localdomain Hello dl.cdmusic.ir [185.49.87.133]250-SIZE 52428800250-8BITMIME250-PIPELINING250-AUTH PLAIN LOGIN250 HELP
2018-12-18 14:46:04 CLIENT -> SERVER: AUTH LOGIN
2018-12-18 14:46:04 SERVER -> CLIENT: 334 VXNlcm5hbWU6
2018-12-18 14:46:04 CLIENT -> SERVER: <credentials hidden>
2018-12-18 14:46:04 SERVER -> CLIENT: 334 UGFzc3dvcmQ6
2018-12-18 14:46:04 CLIENT -> SERVER: <credentials hidden>
2018-12-18 14:46:07 SERVER -> CLIENT: 535 Incorrect authentication data
2018-12-18 14:46:07 SMTP ERROR: Password command failed: 535 Incorrect authentication data
SMTP Error: Could not authenticate.
2018-12-18 14:46:07 CLIENT -> SERVER: QUIT
2018-12-18 14:46:07 SERVER -> CLIENT: 221 localhost.localdomain closing connection
2018-12-18 14:46:07 Connection: closed
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting