Is anyone else getting emails rejected by cybernet/Swisscom with this message:
2007-11-14T09:54:49+0100 louiswu72 postfix1/error[8302]: 1FD0D2B0FA: to=<nnnnnnnnnnnnnn>, relay=none, delay=2.4, delays=2.4/0/0/0.01, dsn=4.0.0, status=deferred (delivery temporarily suspended: host mail.-----.ch[212.90.199.8] refused to talk to me: 421-We are not currently accepting connections from 88.198.198.123. 421-Reason for temporary block: sending us spam 421 Please try again later. We're terminating this connection now.)
/Per Jessen, Herrliberg
Per Jessen schrieb:
Is anyone else getting emails rejected by cybernet/Swisscom with this message:
2007-11-14T09:54:49+0100 louiswu72 postfix1/error[8302]: 1FD0D2B0FA: to=<nnnnnnnnnnnnnn>, relay=none, delay=2.4, delays=2.4/0/0/0.01, dsn=4.0.0, status=deferred (delivery temporarily suspended: host mail.-----.ch[212.90.199.8] refused to talk to me: 421-We are not currently accepting connections from 88.198.198.123. 421-Reason for temporary block: sending us spam 421 Please try again later. We're terminating this connection now.)
/Per Jessen, Herrliberg
This looks like greylisting to me... Though the text could be more specific...
Regards André
Andre Keller wrote:
Per Jessen schrieb:
Is anyone else getting emails rejected by cybernet/Swisscom with this message:
2007-11-14T09:54:49+0100 louiswu72 postfix1/error[8302]: 1FD0D2B0FA: to=<nnnnnnnnnnnnnn>, relay=none, delay=2.4, delays=2.4/0/0/0.01, dsn=4.0.0, status=deferred (delivery temporarily suspended: host mail.-----.ch[212.90.199.8] refused to talk to me: 421-We are not currently accepting connections from 88.198.198.123. 421-Reason for temporary block: sending us spam 421 Please try again later. We're terminating this connection now.)
/Per Jessen, Herrliberg
This looks like greylisting to me... Though the text could be more specific...
Yes, I thought so too - does anyone know if cybernet/swisscom introduced greylisting last night around 2200? (that's when the problem started).
/Per Jessen, Herrliberg
Per Jessen wrote:
Yes, I thought so too - does anyone know if cybernet/swisscom introduced greylisting last night around 2200? (that's when the problem started).
This isn't greylisting - our customer who is hosted by cybernet has not received a single email since last night at 2156. They're not very happy.
/Per Jessen, Herrliberg
Is anyone else getting emails rejected by cybernet/Swisscom with this message:
2007-11-14T09:54:49+0100 louiswu72 postfix1/error[8302]: 1FD0D2B0FA: to=<nnnnnnnnnnnnnn>, relay=none, delay=2.4, delays=2.4/0/0/0.01, dsn=4.0.0, status=deferred (delivery temporarily suspended: host mail.-----.ch[212.90.199.8] refused to talk to me: 421-We are not currently accepting connections from 88.198.198.123. 421-Reason for temporary block: sending us spam 421 Please try again later. We're terminating this connection now.)
This is not gray listing (it would say so if it were), that IP address did send SPAM to us, and got temporarily blacklisted for it. You can contact me privately to sort out the specifics (m.wild@cybernet.ch, or markus.wild1@swisscom.com, in order of preference).
Cheers, Markus
Markus Wild schrieb:
Is anyone else getting emails rejected by cybernet/Swisscom with this message:
2007-11-14T09:54:49+0100 louiswu72 postfix1/error[8302]: 1FD0D2B0FA: to=<nnnnnnnnnnnnnn>, relay=none, delay=2.4, delays=2.4/0/0/0.01, dsn=4.0.0, status=deferred (delivery temporarily suspended: host mail.-----.ch[212.90.199.8] refused to talk to me: 421-We are not currently accepting connections from 88.198.198.123. 421-Reason for temporary block: sending us spam 421 Please try again later. We're terminating this connection now.)
This is not gray listing (it would say so if it were), that IP address did send SPAM to us, and got temporarily blacklisted for it. You can contact me privately to sort out the specifics (m.wild@cybernet.ch, or markus.wild1@swisscom.com, in order of preference).
I just wondering why you block with temporary error? When you'd block with 5xx Error the customer would be informed after he sends the mail that it wasn't delivered... With 4xx Error he knows not until approx 4 days after he sent the mail. That seems not to good in my eyes...
Regards André
I just wondering why you block with temporary error? When you'd block with 5xx Error the customer would be informed after he sends the mail that it wasn't delivered... With 4xx Error he knows not until approx 4 days after he sent the mail. That seems not to good in my eyes...
All such blocks are temporary, thus the error code shouldn't return something permanent. At least in my eyes.
Cheers, Markus
Markus Wild schrieb:
I just wondering why you block with temporary error? When you'd block with 5xx Error the customer would be informed after he sends the mail that it wasn't delivered... With 4xx Error he knows not until approx 4 days after he sent the mail. That seems not to good in my eyes...
All such blocks are temporary, thus the error code shouldn't return something permanent. At least in my eyes.
What means temporary? Less than 3 to 4 days? Then I agree with you...
Cheers, Markus _______________________________________________ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Andre Keller wrote:
I just wondering why you block with temporary error? When you'd block with 5xx Error the customer would be informed after he sends the mail that it wasn't delivered... With 4xx Error he knows not until approx 4 days after he sent the mail. That seems not to good in my eyes...
In this case it's actually very good. A 5xx reject in this case would have caused far more problems.
/Per Jessen, Herrliberg
Hello Andre
Andre Keller wrote:
that it wasn't delivered... With 4xx Error he knows not until approx 4 days after he sent the mail. That seems not to good in my eyes...
The timeout for a delivery warning back to the sender depends on the mailserver which tries to send out the e-mail.
In the standard setup of Sendmail it does send a warning (informational) after 4 hours if there is a problems with delivery and will try for another 5 days. After that, If it could not be delivered, it will send back an error message to the sender.
This can be adjusted with the following lines in the .mc file:
define(`confTO_QUEUEWARN',4h) define(`confTO_QUEUERETURN',5d)
Other MTAs should have something similar.
bye Fabian
There are other Problems too on the Cybernet Mailservers
Mails take up to 5 hours for relaying!
anyone can give more detailed news about this Problem?
Regards Marco
Fabian Wenk wrote:
Hello Andre
Andre Keller wrote:
that it wasn't delivered... With 4xx Error he knows not until approx 4 days after he sent the mail. That seems not to good in my eyes...
The timeout for a delivery warning back to the sender depends on the mailserver which tries to send out the e-mail.
In the standard setup of Sendmail it does send a warning (informational) after 4 hours if there is a problems with delivery and will try for another 5 days. After that, If it could not be delivered, it will send back an error message to the sender.
This can be adjusted with the following lines in the .mc file:
define(`confTO_QUEUEWARN',4h) define(`confTO_QUEUERETURN',5d)
Other MTAs should have something similar.
bye Fabian _______________________________________________ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Markus Wild wrote:
This is not gray listing (it would say so if it were), that IP address did send SPAM to us, and got temporarily blacklisted for it. You can contact me privately to sort out the specifics (m.wild@cybernet.ch, or markus.wild1@swisscom.com, in order of preference).
Problem solved, but I forgot to say thanks to Markus for his valuable help. Thanks Markus.
/Per Jessen, Herrliberg
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Andre Keller -
Fabian Wenk -
Marco Meile -
Markus Wild -
Per Jessen