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Topic: Recipient address rejected: Policy Rejection- Please try later. ERROR

==== Provide required information ====
- iRedMail version and backend (LDAP/MySQL/PGSQL): iRedMail-0.8.1
- Linux/BSD distribution name and version: CentOS 6
- Any related log? Log is helpful for troubleshooting.
====

Hi,

I am getting some emails being rejected which are from known users. maillog shows:

Jun 22 11:35:13 mail1 postfix/smtpd[15503]: NOQUEUE: reject: RCPT from unknown[xx.xxx.xx.235]: 450 4.7.1 <sam@mydomain.com>: Recipient address rejected: Policy Rejection- Please try later.; from=<smerdaoui@otherdomain.com> to=<sam@mydomain.com> proto=ESMTP helo=<avstatavascout07.com>
Jun 22 11:36:18 mail1 postfix/smtpd[15503]: NOQUEUE: reject: RCPT from unknown[xx.xx.xxx.72]: 450 4.7.1 <bobby.amin@mydomain.com>: Recipient address rejected: Policy Rejection- Please try later.; from=<tl-sales+bncCIrqyIDZHBCclZH_BBoEET5zQg@otherdomain.com> to=<bobby.amin@mydomain.com> proto=ESMTP helo=<mail-ee0-f72.google.com>

from above logs you can see mail has come from smerdaoui which is known user which is being rejected and secondly we have one group ID tl-sales@otherdomain.com in which bobby.amin@mydomain.com is a member user of the group ID. however that mail comes from Google itself but it is also being rejected with reason please try later...

How can I prevent such type of rejections?

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Re: Recipient address rejected: Policy Rejection- Please try later. ERROR

Dear ketan.aagja,

This is caused by greylisting. Please refere to http://greylisting.org/ to learn how it works.