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The mail system
: host 103.48.205.241[103.48.205.241] said: 550 5.1.1
: Recipient address rejected: katathani.com (in
reply to RCPT TO command)
Final-Recipient: rfc822; personal@katathani.com
Original-Recipient: rfc822;personal@katathani.com
Action: failed
Status: 5.1.1
Remote-MTA: dns; 103.48.205.241
Diagnostic-Code: smtp; 550 5.1.1 : Recipient address
rejected: katathani.com