1 Topic by Kalabog (edited by Kalabog 2018-08-14 01:10:04)

  • Kalabog
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Topic: Error 450 4.7.1 Helo command rejected: Host not found

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

Aug 13 08:07:14 mx postfix/smtpd[8606]: NOQUEUE: reject: RCPT from mta02.globetel.com.ph[120.28.49.114]: 450 4.7.1 <mta02.globetel.com>: Helo command rejected: Host not found; from=<tcadd01@globetel.com.ph> to=<user@example.com> proto=ESMTP helo=<mta02.globetel.com>


Thanks

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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
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  • Registered: 2009-05-06
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Re: Error 450 4.7.1 Helo command rejected: Host not found

FYI: https://docs.iredmail.org/errors.html#h … -not-found

3 Reply by Kalabog

  • Kalabog
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Re: Error 450 4.7.1 Helo command rejected: Host not found

ZhangHuangbin wrote:

FYI: https://docs.iredmail.org/errors.html#h … -not-found

Fixed using /etc/postfix/helo_access.pcre

Great software !!!

Thanks