Sorry - I’m putting a lot of information here - I thought it might be helpful later -
Per this post:
I change my debug level to 4 - and I seem to be looking at the same issue - maybe?
Connection: opening to mail.server307.com:587, timeout=5, options=array ()
Connection: opened
SMTP → get_lines(): $data is “”
SMTP → get_lines(): $str is “220 server307.com ESMTP”
SERVER → CLIENT: 220 server307.com ESMTP
CLIENT → SERVER: EHLO aarontrumm.com
SMTP → get_lines(): $data is “”
SMTP → get_lines(): $str is “250-server307.com”
SMTP → get_lines(): $data is “250-server307.com”
SMTP → get_lines(): $str is “250-STARTTLS”
SMTP → get_lines(): $data is “250-server307.com250-STARTTLS”
SMTP → get_lines(): $str is “250-PIPELINING”
SMTP → get_lines(): $data is “250-server307.com250-STARTTLS250-PIPELINING”
SMTP → get_lines(): $str is “250-8BITMIME”
SMTP → get_lines(): $data is “250-server307.com250-STARTTLS250-PIPELINING250-8BITMIME”
SMTP → get_lines(): $str is “250-SIZE 0”
SMTP → get_lines(): $data is “250-server307.com250-STARTTLS250-PIPELINING250-8BITMIME250-SIZE 0”
SMTP → get_lines(): $str is “250 AUTH LOGIN PLAIN CRAM-MD5”
SERVER → CLIENT: 250-server307.com250-STARTTLS250-PIPELINING250-8BITMIME250-SIZE 0250 AUTH LOGIN PLAIN CRAM-MD5
CLIENT → SERVER: STARTTLS
SMTP → get_lines(): $data is “”
SMTP → get_lines(): $str is “220 ready for tls”
SERVER → CLIENT: 220 ready for tls
CLIENT → SERVER: EHLO aarontrumm.com
SMTP → get_lines(): $data is “”
SMTP → get_lines(): $str is “250-server307.com”
SMTP → get_lines(): $data is “250-server307.com”
SMTP → get_lines(): $str is “250-PIPELINING”
SMTP → get_lines(): $data is “250-server307.com250-PIPELINING”
SMTP → get_lines(): $str is “250-8BITMIME”
SMTP → get_lines(): $data is “250-server307.com250-PIPELINING250-8BITMIME”
SMTP → get_lines(): $str is “250-SIZE 0”
SMTP → get_lines(): $data is “250-server307.com250-PIPELINING250-8BITMIME250-SIZE 0”
SMTP → get_lines(): $str is “250 AUTH LOGIN PLAIN CRAM-MD5”
SERVER → CLIENT: 250-server307.com250-PIPELINING250-8BITMIME250-SIZE 0250 AUTH LOGIN PLAIN CRAM-MD5
Auth method requested: UNKNOWN
Auth methods available on the server: LOGIN,PLAIN,CRAM-MD5
Auth method selected: CRAM-MD5
CLIENT → SERVER: AUTH CRAM-MD5
SMTP → get_lines(): $data is “”
SMTP → get_lines(): $str is “334 PDE4OTMxLjE0NzE4NjIwNzRAc210cC5zdXJlc2VydmVyLmNvbT4=”
SERVER → CLIENT: 334 PDE4OTMxLjE0NzE4NjIwNzRAc210cC5zdXJlc2VydmVyLmNvbT4=
CLIENT → SERVER: YWFyb25AYWFyb250cnVtbS5jb20gMTdmNzFmMTI4NGJiYWI2YzhhN2M5YTI5NzMxMzZkMGI=
SMTP → get_lines(): $data is “”
SMTP → get_lines(): $str is “”
SMTP → get_lines(): timed-out (5 sec)
SERVER → CLIENT:
SMTP ERROR: Username command failed:
SMTP Error: Could not authenticate.
CLIENT → SERVER: QUIT
SMTP → get_lines(): $data is “”
SMTP → get_lines(): $str is “535 authentication failed (#5.7.1)”
SERVER → CLIENT: 535 authentication failed (#5.7.1)
SMTP ERROR: QUIT command failed: 535 authentication failed (#5.7.1)
Connection: closed
SMTP connect() failed. Troubleshooting · PHPMailer/PHPMailer Wiki · GitHub