Send email via Gmail SMTP server in PHP
Gmail SMTP
2026-06-09 23:22:01 SERVER -> CLIENT: 220-ambient.aslinser2.com ESMTP Exim 4.99.3 #2 Wed, 10 Jun 2026 00:22:01 +0100 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.
2026-06-09 23:22:01 CLIENT -> SERVER: EHLO 1st-choice-formations.co.uk
2026-06-09 23:22:01 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
2026-06-09 23:22:01 CLIENT -> SERVER: STARTTLS
2026-06-09 23:22:01 SERVER -> CLIENT: 220 TLS go ahead
SMTP Error: Could not connect to SMTP host.
2026-06-09 23:22:01 CLIENT -> SERVER: QUIT
2026-06-09 23:22:01
2026-06-09 23:22:01
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting
Mailer Error: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting