2026-06-21 13:05:30 SERVER -&gt; CLIENT: 220-hosting44.upnyk.ac.id ESMTP Exim 4.99.4 #2 Sun, 21 Jun 2026 20:05:30 +0700 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.<br>
2026-06-21 13:05:30 CLIENT -&gt; SERVER: EHLO send.upnyk.ac.id<br>
2026-06-21 13:05:30 SERVER -&gt; CLIENT: 250-hosting44.upnyk.ac.id Hello send.upnyk.ac.id [103.236.192.44]250-SIZE 52428800250-LIMITS MAILMAX=1000 RCPTMAX=50000250-8BITMIME250-PIPELINING250-PIPECONNECT250-AUTH PLAIN LOGIN250-STARTTLS250 HELP<br>
2026-06-21 13:05:30 CLIENT -&gt; SERVER: STARTTLS<br>
2026-06-21 13:05:30 SERVER -&gt; CLIENT: 220 TLS go ahead<br>
SMTP Error: Could not connect to SMTP host. Connection failed. stream_socket_enable_crypto(): Peer certificate CN=`autoconfig.hosting44.upnyk.ac.id&#039; did not match expected CN=`smtp-pulse.com&#039;<br>
2026-06-21 13:05:30 CLIENT -&gt; SERVER: QUIT<br>
2026-06-21 13:05:30 <br>
2026-06-21 13:05:30 <br>
SMTP Error: Could not connect to SMTP host. Connection failed. stream_socket_enable_crypto(): Peer certificate CN=`autoconfig.hosting44.upnyk.ac.id&#039; did not match expected CN=`smtp-pulse.com&#039;<br>
Message could not be sent. Mailer Error: SMTP Error: Could not connect to SMTP host. Connection failed. stream_socket_enable_crypto(): Peer certificate CN=`autoconfig.hosting44.upnyk.ac.id' did not match expected CN=`smtp-pulse.com'SMTP server error: QUIT command failed Detail: -[ÞSEUtf4ãO¬Eõ€%u221 hosting44.upnyk.ac.id closing connection