[hobbit] SMTP - connection refused

[Xymon User in Richmond]

I use badTEST for that where necessary.  Depending on what MTA you're
running, you may be able to boost the refusal level from defaults without
compromising server operation.  With sendmail, refuseLA defaults to a load
average of 12*number-of-processors, and most relatively modern Linux
servers will continue operating reasonably at 50 or higher if they're
dedicated MTAs.  I used to have that level frequently on Dell Poweredge
2550's with dual 1Ghz processors and 4Gb RAM running RHEL 3.  In a spam
storm, the undeliverable bounces could get out of hand, but that's a
problem that should get attention.

On Mon, January 26, 2009 16:18, Olivier Beau wrote:
> Hi,
>
> I would use the badTEST feature (cf. man bb-hosts)
>
> Olivier
>
> On 26/01/2009 22:08, Martha McConaghy wrote:
>> I'm monitoring some very busy SMTP servers that handle all our incoming
>>  email.  Because they are so busy, at times, Xymon will get a
>> connection refused condition when testing SMTP, which generates a red
>> alert.  Its fine at the next test cycle, but the false alerts concern
>> me.  (People get used to seeing false alerts, they ignore the real
>> ones.)
>>
>> Does anyone have any suggestions?  Is there I way I can alter the SMTP
>> test to not generate this condition as an alert, or perhaps an alert
>> script that won't send out an email?
>>
>> Martha McConaghy Marist College
>>
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