How to refuse incoming internet SMTP connections, but NOT local connections, when load average gets too high?

03/02/2007, 09h26

Hi All,

I've got 3 mail servers - I'd like my primary to refuse new connections from
the internet when it gets too busy, but I still want software running on
this machine to be able to originate new messages (and for sendmail to
deliver them immediately).

Is this possible?

I've noticed the various load-average-related sendmail configurations block
everything (new internet connections, locally originated ones, and also
prevent sendmail processing it's queues). Is there maybe some way to tell
8.13.8 to honor settings within one particular .cf file for incoming
internet connections, but to have it honor a different set of settings for
new emails and for queue sending?

I'm greatful for any/all hints/tips! If for some reason you can't reply to
the group, reply to pobox.com with christopher@ on the front.

04/02/2007, 02h16

On Feb 3, 4:26 am, "Chris" <reply2listple...@example.com> wrote:
> Hi All,
>
> I've got 3 mail servers - I'd like my primary to refuse new connections from
> the internet when it gets too busy, but I still want software running on
> this machine to be able to originate new messages (and for sendmail to
> deliver them immediately).
>
> Is this possible?
>
> I've noticed the various load-average-related sendmail configurations block
> everything (new internet connections, locally originated ones, and also
> prevent sendmail processing it's queues). Is there maybe some way to tell
> 8.13.8 to honor settings within one particular .cf file for incoming
> internet connections, but to have it honor a different set of settings for
> new emails and for queue sending?

You could try writing rules and using the $&{load_avg} macro

You can also have different daemon definitions with different values,
feature available in 8.14.0

>
> I'm greatful for any/all hints/tips! If for some reason you can't reply to
> the group, reply to pobox.com with christopher@ on the front.

04/02/2007, 21h35

On 02/03/07 03:26, Chris wrote:
> I've noticed the various load-average-related sendmail configurations block
> everything (new internet connections, locally originated ones, and also
> prevent sendmail processing it's queues). Is there maybe some way to tell
> 8.13.8 to honor settings within one particular .cf file for incoming
> internet connections, but to have it honor a different set of settings for
> new emails and for queue sending?

Look in to upgrading to 8.14.0 and using the new per daemon options for
load average options.

Grant. . . .

03/02/2007, 09h26	#1
Chris Messages: n/a Hébergeur:	How to refuse incoming internet SMTP connections, but NOT local connections, when load average gets too high? Hi All, I've got 3 mail servers - I'd like my primary to refuse new connections from the internet when it gets too busy, but I still want software running on this machine to be able to originate new messages (and for sendmail to deliver them immediately). Is this possible? I've noticed the various load-average-related sendmail configurations block everything (new internet connections, locally originated ones, and also prevent sendmail processing it's queues). Is there maybe some way to tell 8.13.8 to honor settings within one particular .cf file for incoming internet connections, but to have it honor a different set of settings for new emails and for queue sending? I'm greatful for any/all hints/tips! If for some reason you can't reply to the group, reply to pobox.com with christopher@ on the front.

04/02/2007, 02h16	#2
jmaimon@ttec.com Messages: n/a Hébergeur:	Re: How to refuse incoming internet SMTP connections, but NOT local connections, when load average gets too high? On Feb 3, 4:26 am, "Chris" <reply2listple...@example.com> wrote: > Hi All, > > I've got 3 mail servers - I'd like my primary to refuse new connections from > the internet when it gets too busy, but I still want software running on > this machine to be able to originate new messages (and for sendmail to > deliver them immediately). > > Is this possible? > > I've noticed the various load-average-related sendmail configurations block > everything (new internet connections, locally originated ones, and also > prevent sendmail processing it's queues). Is there maybe some way to tell > 8.13.8 to honor settings within one particular .cf file for incoming > internet connections, but to have it honor a different set of settings for > new emails and for queue sending? You could try writing rules and using the $&{load_avg} macro You can also have different daemon definitions with different values, feature available in 8.14.0 > > I'm greatful for any/all hints/tips! If for some reason you can't reply to > the group, reply to pobox.com with christopher@ on the front.

04/02/2007, 21h35	#3
Grant Taylor Messages: n/a Hébergeur:	Re: How to refuse incoming internet SMTP connections,but NOT local connections, when load average gets too high? On 02/03/07 03:26, Chris wrote: > I've noticed the various load-average-related sendmail configurations block > everything (new internet connections, locally originated ones, and also > prevent sendmail processing it's queues). Is there maybe some way to tell > 8.13.8 to honor settings within one particular .cf file for incoming > internet connections, but to have it honor a different set of settings for > new emails and for queue sending? Look in to upgrading to 8.14.0 and using the new per daemon options for load average options. Grant. . . .

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