Re: [exim] 421 Too many concurrent SMTP connections

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Autor: CIS Exim users mailing list
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A: exim-users
Assumpte: Re: [exim] 421 Too many concurrent SMTP connections
jori.hamalainen@??? wrote:
>> Relay under heavy network load - really many what to connect it.
>> And I start to get
>> "421 Too many concurrent SMTP connections; please try again later"
>> in logs.
>
>> But I don`t use rate limiting. What else can make this? And how can I
> change it?
>
> On which server and from which direction. Is that on "=>" log-line or is
> your server denying connections? Because it affect which server you

need to
> tweak.
>
> More to read, exim documentation 14.10 "resource control".
>

http://www.exim.org/exim-html-current/doc/html/spec_html/ch14.html#SECID105
>
 > Mostly you should be interested in options:
 > smtp_accept_max            simultaneous incoming connections
 > smtp_accept_max_per_host    connections from one host

>

Oh, so it have some defaults of rate limiting...
I thint what if i not set it - it is unlimited.

Thank you.

--
Best regards,
Proskurin Kirill