Send email via Gmail SMTP server in PHP
Gmail SMTP
2026-09-27 17:23:27 SERVER -> CLIENT: 220-ambient.aslinser2.com ESMTP Exim 4.100.1 #2 Sun, 27 Sep 2026 18:23:27 +0100 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.
2026-09-27 17:23:27 CLIENT -> SERVER: EHLO 1st-choice-formations.co.uk
2026-09-27 17:23:27 SERVER -> CLIENT: 250-ambient.aslinser2.com Hello 1st-choice-formations.co.uk [204.12.204.170]250-SIZE 52428800250-LIMITS MAILMAX=1000 RCPTMAX=50000250-8BITMIME250-PIPELINING250-PIPECONNECT250-AUTH PLAIN LOGIN250-STARTTLS250 HELP
2026-09-27 17:23:27 CLIENT -> SERVER: STARTTLS
2026-09-27 17:23:27 SERVER -> CLIENT: 220 TLS go ahead
SMTP Error: Could not connect to SMTP host.
2026-09-27 17:23:27 CLIENT -> SERVER: QUIT
2026-09-27 17:23:28
2026-09-27 17:23:28
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Mailer Error: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting