1 Topic by kaifamm

  • kaifamm
  • Member
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  • Registered: 2016-05-03
  • Posts: 21

Topic: 421 Too many connections, slow down

==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.6.2
- Deployed with iRedMail Easy or the downloadable installer? downloadable installer
- Linux/BSD distribution name and version: RHEL 9.1
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MARIADB
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? No
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====
My Iredmail server fails to send many emails because it receives the following message: (host smtp-in.libero.it[213.209.1.129] refused to talk to me: 421 smtp-07.iol.local smtp-07.iol .local Too many connections, slow down [smtp-07.iol.local; LIB_145])

Is there a way to avoid this message?
Is it possible to slow down email sendings?

Than you

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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
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  • Registered: 2009-05-06
  • Posts: 31,131

Re: 421 Too many connections, slow down

You sent too many emails to this recipient server (smtp-in.libero.it) and it refused to accept this email.