greylisted problem

[Juliano Silva]

Hello, how do I solve this problem , greylisted

Feb 1 11:12:41 prox postfix/smtpd[6325]: connect from rl-20us.hmservers.net[198.136.59.239]
Feb 1 11:12:42 prox postfix/smtpd[6325]: NOQUEUE: reject: RCPT from rl-20us.hmservers.net[198.136.59.239]: 450 4.7.1 <andreia@tecnave.com.br>: Recipient address rejected: Service is unavailable (try later); from=<recred@cdlvilavelha.com.br> to=<andreia@tecnave.com.br> proto=ESMTP helo=<rl-20us.hmservers.net>
Feb 1 11:12:42 prox postfix/smtpd[6325]: NOQUEUE: reject: RCPT from rl-20us.hmservers.net[198.136.59.239]: 450 4.7.1 <nfe@tecnave.com.br>: Recipient address rejected: Service is unavailable (try later); from=<recred@cdlvilavelha.com.br> to=<nfe@tecnave.com.br> proto=ESMTP helo=<rl-20us.hmservers.net>
Feb 1 11:12:42 prox postfix/smtpd[6325]: disconnect from rl-20us.hmservers.net[198.136.59.239] ehlo=1 mail=1 rcpt=0/2 data=0/1 quit=1 commands=3/6

 

[tom]

This is no "problem", grey-listing works this way.

 

[Juliano Silva]

E-mails are stopped at pmg is correct? I see you are not delivered to the user

This is no "problem", grey-listing works this way.

 

[dietmar]

Here is an explanation how it works: https://en.wikipedia.org/wiki/Greylisting