1 Topic by tyllee

  • tyllee
  • Member
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  • Registered: 2013-03-27
  • Posts: 98

Topic: TOP 10 sender "13 <>"

==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.4
- Linux/BSD distribution name and version:  Deb 8.4
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? v2.3.1
- Related log if you're reporting an issue:
====
iRedAdmin Pro Dashboard

TOP 10 sender
"13    <>"

What does this mean? That my server is allowing to send without adress?

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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: 30,770

Re: TOP 10 sender "13 <>"

This is called "null sender", it's MTA itself sent bounce message. It's normal.