Control Web Panel
WebPanel => CentOS 7 Problems => Topic started by: bozail1 on June 05, 2020, 11:37:24 AM
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Mail Server Error Sent OK but not Received on recipient address same applied in incoming mail i am not receiving any kind of mail the sender told me your email bounce back.
Reject the request when the hostname in the client HELO (EHLO) command has no DNS A or MX record. The unknown_hostname_reject_code specifies the response code to rejected requests (default: 450