1 Topic by Jochen

  • Jochen
  • Member
  • Offline
  • Registered: 2014-03-31
  • Posts: 75

Topic: Greylisting and Backup MX

==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.9.9
- Deployed with iRedMail Easy or the downloadable installer? installer
- Linux/BSD distribution name and version: debian 9.8
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MariaDB
- Web server (Apache or Nginx): Ngnx
- Manage mail accounts with iRedAdmin-Pro? yes
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Hi,

I noticed that servers trying to deliver mailto us contact the backup mx, when greylisting is in effect. This is probably a at least somewhat expected feature... what is the recommended way to configure the backup mx for these cases?

Thx
Jochen

----

Spider Email Archiver: On-Premises, lightweight email archiving software developed by iRedMail team. Supports Amazon S3 compatible storage and custom branding.

2 Reply by ZhangHuangbin

  • ZhangHuangbin
  • ZhangHuangbin
  • iRedMail Developers
  • Offline
  • Registered: 2009-05-06
  • Posts: 31,088

Re: Greylisting and Backup MX

Jochen wrote:

I noticed that servers trying to deliver mailto us contact the backup mx, when greylisting is in effect.

This is not right behaviour for MTA. The sender MTA should retry with same primary MX of recipient domain.