helo error help

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helo error help

Joey-16

Hello All,

 

I am trying to figure out why this exchange server gets a Helo Check error.

 

May  2 08:45:19 pluto postfix/smtpd[6099]: NOQUEUE: reject: RCPT from jupiter.client-server.net[172.51.19.125]:

554 5.7.1 <client-server.com>: Helo command rejected: Helo Check;

from=<[hidden email]> to=<[hidden email]> proto=ESMTP helo=<client-server.com>

 

I have these settings which maybe I’m being a little aggressive, but other Exchange servers are sending fine:

biff = no

soft_bounce = no

smtpd_delay_reject = yes

smtpd_helo_required = yes

strict_rfc821_envelopes = yes

disable_vrfy_command = yes

smtpd_hard_error_limit = 3

smtpd_junk_command_limit = 3

show_user_unknown_table_name = no

unknown_address_reject_code  = 554

unknown_hostname_reject_code = 554

unknown_client_reject_code   = 554

deliver_lock_attempts = 10

 

 

smtpd_recipient_restrictions =

        reject_invalid_helo_hostname,

        reject_non_fqdn_sender,

        reject_non_fqdn_recipient,

        reject_unknown_sender_domain,

        reject_unknown_recipient_domain,

        permit_mynetworks,

        permit_sasl_authenticated,

        reject_unauth_destination,

        check_helo_access hash:/etc/postfix/helo_access,

        reject_invalid_helo_hostname,

        reject_non_fqdn_helo_hostname,

 

 

 

 

 

Thanks!

 

Joey

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Re: helo error help

Wietse Venema
Joey:
> I am trying to figure out why this exchange server gets a Helo Check error.
>
> May  2 08:45:19 pluto postfix/smtpd[6099]: NOQUEUE: reject: RCPT from
> jupiter.client-server.net[172.51.19.125]:
> 554 5.7.1 <client-server.com>: Helo command rejected: Helo Check;
> from=<[hidden email]> to=<[hidden email]> proto=ESMTP
> helo=<client-server.com>

You forgot to show the access rule that replies with "Helo Check".

        Wietse
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Re: helo error help

Ralf Hildebrandt
In reply to this post by Joey-16
* Joey <[hidden email]>:

> Hello All,
>
>  
>
> I am trying to figure out why this exchange server gets a Helo Check error.
>
>  
>
> May  2 08:45:19 pluto postfix/smtpd[6099]: NOQUEUE: reject: RCPT from
> jupiter.client-server.net[172.51.19.125]:
> 554 5.7.1 <client-server.com>: Helo command rejected: Helo Check;
> from=<[hidden email]> to=<[hidden email]> proto=ESMTP
> helo=<client-server.com>

>         check_helo_access hash:/etc/postfix/helo_access,
Look into that map
--
Ralf Hildebrandt ([hidden email])          [hidden email]
Postfix - Einrichtung, Betrieb und Wartung       Tel. +49 (0)30-450 570-155
http://www.arschkrebs.de
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