hi,
We use the email greylisting policy for incoming email for us and our customers, and it appears that often the email from Sunrise network comes with huge delays, from several hours to several days.
Did anyone else see such problems? Guys from Sunrise, plase contact me directly for more details and troubleshooting.
Such delays seen in email coming from smtp-auth-be-01.sunrise.ch (mail-proxy-be-01.sunrise.ch [194.158.229.48]) smtp-auth-be-06.sunrise.ch (mx-auth.sunrise.ch [194.158.229.90])
cheers, stan 044 732 9953 079 407 0224
On Tuesday 27. March 2007, Stanislav Sinyagin wrote:
hi,
Hi Stan
We use the email greylisting policy for incoming email for us and our customers, and it appears that often the email from Sunrise network comes with huge delays, from several hours to several days.
Yeah greylisting... :-)
Did anyone else see such problems?
Yes we've seen this from smtp-auth-be-01.sunrise.ch, too.
Guys from Sunrise, plase contact me directly for more details and troubleshooting.
Spam is evil. Very evil. It turns email unreliable. But is it the right treatement to add more unreliability?
That's what makes greylistings questionable.
cheers, Michi
Spam is evil. Very evil. It turns email unreliable. But is it the right treatement to add more unreliability?
That's what makes greylistings questionable.
It works quite fine for few thousand users on our side, since about 6 months. Those few issues like this one are quite acceptable, compared to the betefits :)
Stanislav Sinyagin wrote:
We use the email greylisting policy for incoming email for us and our customers, and it appears that often the email from Sunrise network comes with huge delays, from several hours to several days.
Did anyone else see such problems? Guys from Sunrise, plase contact me directly for more details and troubleshooting.
Why bother greylisting someone who you know will be retrying anyway? Just add the sunrise mail servers to your whitelist.
/Per
--- Per Jessen per.jessen@enidan.ch wrote:
Why bother greylisting someone who you know will be retrying anyway? Just add the sunrise mail servers to your whitelist.
of course I did. But I think it's better to resolve the problem at its source :)
Stanislav Sinyagin wrote:
We use the email greylisting policy for incoming email for us and our customers, and it appears that often the email from Sunrise network comes with huge delays, from several hours to several days.
Did anyone else see such problems? Guys from Sunrise, plase contact me directly for more details and troubleshooting.
Just a guess: The more retries to a certain SMTP destination, the longer the retry interval...leads to exponential delivery times.
Pure greylisting is - just like blacklistsing - is useless or leads to unexpected behavior without a well-maintained and monitored whitelist for a corporate or ISP e-mail system.
Up to each engineer what he is using for his own private or business server - but this is a different pair of shoes.
-Kurt.
-
Kurt A. Schumacher -
Michael Naef -
Per Jessen -
Stanislav Sinyagin