Re: [Nolug] nolug.org down?

They are not all 5 days in fact some (very few) will not try again -
that's basically the trick behind greylisting. Spambots and such are
generally designed to blast mail out and won't even know to try again.

A solution is to use a backup MX but that creates problems of its own.

- Dane

Joey Kelly wrote:
> On Monday 09 October 2006 20:41, Jonathan Roberts wrote:
>
>> Site seems to be up but I just got this 3 day old email?
>>
>
> Ooh, an opportunity to teach you guys a little about SMTP :-)
>
> Everyone's seen transient email errors, such as "it's been 4 hours, your mail
> hasn't been sent yet, I'll keep trying for another 5 days". More or less by
> default, SMTP keeps trying to deliver email for 5 days before completely
> giving up. Of course, there are random errors that make it impossible to
> route mail to its destination, in which case you'll get a terminal error
> almost immediately.
>
> My server went down Friday around noon. Mail would not have started bouncing
> until Wednesday. My stuff was down for 6 days during Katrina, so I lost at
> least 1 day's worth of mail.
>
> If an email is temporarily rejected or otherwise fails to be delivered on the
> first try, the originating server waits a few minutes (10, for example) and
> tries again. If the next try doesn't work, it waits even longer before
> retrying. The reason why this message from Saturday is just now showing up is
> because by this time your server has been waiting hours, not minutes, between
> delivery attempts.
>
> --Joey
>
>
>> Jonathan
>>
>> On 10/7/06, Trey Fox <gefox4@gmail.com> wrote:
>>
>>> Chris and I are getting that the site is down, anyone else noticed this.
>>> I guess Joey may be doing something I guess.
>>>
>>> --
>>> Trey Fox
>>> http://OpenSuse.us <http://opensuse.us/> - Administrator
>>> http://USALUG.org <http://usalug.org/>
>>> http://Ulteo.com <http://ulteo.com/> - Administrator
>>>
>
>

___________________
Nolug mailing list
nolug@nolug.org
Received on 10/09/06