I am getting following error, can you help me to resolve it.
2024-05-11 11:45:14 SERVER → CLIENT: 220-whm-cpanel.dhakdhakindia ESMTP Exim 4.97.1 #2 Sat, 11 May 2024 11:45:14 +0000 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.
2024-05-11 11:45:14 CLIENT → SERVER: EHLO stagging.templatelelo
2024-05-11 11:45:14 SERVER → CLIENT: 250-whm-cpanel.dhakdhakindia Hello stagging.templatelelo.com [52.22.3.167]250-SIZE 52428800250-8BITMIME250-PIPELINING250-PIPECONNECT250-AUTH PLAIN LOGIN250-STARTTLS250 HELP
2024-05-11 11:45:14 CLIENT → SERVER: STARTTLS
2024-05-11 11:45:14 SERVER → CLIENT: 220 TLS go ahead
SMTP Error: Could not connect to SMTP host.
2024-05-11 11:45:14 CLIENT → SERVER: QUIT
2024-05-11 11:45:14
2024-05-11 11:45:14
SMTP Error: Could not connect to SMTP host.