one sender (and only this one) is unable to send email to my users, this
is the error in spamdyke log:
Jun 22 05:47:37 mx01 spamdyke: DENIED_OTHER from: i...@domain.net
to: j...@domain.com origin_ip: 18.104.22.168 origin_rdns:
static-98-18-75-3.optusnet.com.au auth: (unknown) encryption: TLS
The sender said that "is unable to send email only to me" so the problem
is mine ...
When the error "MAIL first" occurs?
How can I solve this problem or how can I demonstrate that is a sender
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