SERVER -&gt; CLIENT: 220-stve.wnkserver5.com ESMTP Exim 4.96.2 #2 Sat, 18 May 2024 00:35:00 -0500 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.<br>
CLIENT -&gt; SERVER: EHLO zonazao.com<br>
SERVER -&gt; CLIENT: 250-stve.wnkserver5.com Hello zonazao.com [::1]250-SIZE 52428800250-8BITMIME250-PIPELINING250-PIPECONNECT250-AUTH PLAIN LOGIN250-STARTTLS250-SMTPUTF8250 HELP<br>
CLIENT -&gt; SERVER: STARTTLS<br>
SERVER -&gt; CLIENT: 220 TLS go ahead<br>
SMTP Error: Could not connect to SMTP host.<br>
CLIENT -&gt; SERVER: QUIT<br>
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SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting<br>
Mailer Error: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting