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Topic: Default rules in /etc/postfix/rdns_access.pcre

==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): ??
2021020901 (Backend: mariadb, Date: 2021-02-09 17:52:30) iRedMail Easy: https://www.iredmail.org/easy.html
- Linux/BSD distribution name and version: Centos 7.9.2009
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  mysql
- Web server (Apache or Nginx): apache
- Manage mail accounts with iRedAdmin-Pro? prü
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
Feb 18 14:23:48 mail postfix/smtpd[65485]: NOQUEUE: reject: RCPT from dd22134.kasserver.com[85.13.141.244]: 554 5.7.1 <dd22134.kasserver.com[85.13.141.244]>: Cl
ient host rejected: Generic - Please relay via ISP (kasserver.com); from=<xxx@xxx.com> to=<yyy@yyy.de> proto=ESMTP helo=<dd22134.kasserver.com>
====

The default rdns_access.pcre file contains the following regex:
/^dd[1-9][0-9]{3,5}\.kasserver\.com$/  REJECT Generic - Please relay via ISP (kasserver.com)

This makes it impossible to receive e-mails from any website hosted with all-inkl.com. The information given to use kasserver,com is misleading because emails are always delivered from subdomains with this ISP.

all-inkl.com is one of the largest ISPs in Germany and rejecting all e-mail messages by default is more than bad. whitelisting of customers is not possible because rdns_access.pcre is loaded in smtpd_client_restrictions  before the whitelisting smtpd_recipient_restrictions takes effect.

Please remove this regex.

Thanks you in advance

Michael

2

Re: Default rules in /etc/postfix/rdns_access.pcre

Fixed. You can remove it manually first, it will be removed in next iRedMail Easy release.
Thanks for the feedback. smile

BTW, for iRedMail Easy deployment, you can use the ticket system in https://easy.iredmail.org/ to report the issue or asking questions.

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