On 22/07/2010 10:31 AM, Mike Canty wrote:
If it is any consolation, we have a site where the ISP has blocked
port 25 traffic to any other point except their own outgoing mail
server. This was noticed recently because the site is currently using
mail hosted externally, and I have tried to install a qmail toaster
machine and came across the block.
Could this be an ISP thing?
*From:* Digital Instruments [mailto:toasterl...@digital-instruments.com]
*Sent:* Thursday, 22 July 2010 4:39 PM
*To:* qmailtoaster-list@qmailtoaster.com
*Subject:* Re: [qmailtoaster] Very strange and huge problem with port
25 and Qmailtoaster
The funny thing is that i haven't change nothing at all.
Is it possible i have been blacklisted on port 25 by zen spamhouse?
Also another problem happened yesterday, in the noon, we could not
recieve e-mail from pop3 and ppl who recieved them were delayed by 30
minutes.
Nothing special on logs the only strange thing i can see is in
/var/log/qmail/smtp, this line:
vchkpw-smtp: vchkpw is only for talking with qmail-popup and
qmail-pop3d. It is not for runnning on the command line.
Telnet port 25 today gives:
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
220 server1.isocast.it - Welcome to Qmail Toaster Ver. 1.3 SMTP Server
ESMTP
Yesterday was giving both on localhost and remote the same messages
given to you.
So.. i can't really understand what's going on...
Il 21/07/2010 16.17, Jake Vickers ha scritto:
On 07/21/2010 08:12 AM, Digital Instruments - Toaster List wrote:
Greetings List,
I'm running from 4 years qmail greatly without many problems, but
today something very very bad happened.
>From this morning i can't send any e-mail from port 25 no matter if
it's internal or external address. its not send at all.
I think something is blocking port 25 cause from IMAP i can send e-mail.
Can anyone help me, please? I need to have this port 25 working back.
IMAP does not send email. You can only send email on ports 25 and 587
with a stock Qmailtoaster.
You have something going on - when telnetting to port 25, I do not
receive a welcome banner:
[j...@jake-lapbox ~]$ time telnet mail.digital-instruments.com 25
Trying 79.14.157.43...
Connected to mail.digital-instruments.com.
Escape character is '^]'.
Connection closed by foreign host.
real 0m0.381s
user 0m0.000s
sys 0m0.004s
But without more information it's almost impossible to even guess at
what the problem may be.
What recently changed? Can you show us logs? What do you get when you
telnet to port 25 at the localhost? Is there something in the network
that may be intercepting this traffic?
Nessun virus nel messaggio in arrivo.
Controllato da AVG -www.avg.com <http://www.avg.com>
Versione: 9.0.851 / Database dei virus: 271.1.1/3019 - Data di rilascio: 07/21/10 08:36:00
-- start logs ---
Escape character is '^]'. *---> (((waiting here about 1 min)))*
220 server1.isocast.it - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP
ehlo xxxx.xx
250-server1.isocast.it - Welcome to Qmail Toaster Ver. 1.3 SMTP Server
250-STARTTLS
250-PIPELINING
250-8BITMIME
250-SIZE 20971520
250 AUTH LOGIN PLAIN CRAM-MD5
quit
221 server1.isocast.it - Welcome to Qmail Toaster Ver. 1.3 SMTP Server
Connection closed by foreign host.
[...@nc07493 ~]$ telnet mail.digital-instruments.com 25
Trying 79.14.157.43...
Connected to mail.digital-instruments.com (79.14.157.43).
Escape character is '^]'. *---> (((waiting here about 1 min)))*
220 server1.isocast.it - Welcome to Qmail Toaster Ver. 1.3 SMTP Server ESMTP
ehlo xxxx.xx
250-server1.isocast.it - Welcome to Qmail Toaster Ver. 1.3 SMTP Server
250-STARTTLS
250-PIPELINING
250-8BITMIME
250-SIZE 20971520
250 AUTH LOGIN PLAIN CRAM-MD5
quit
221 server1.isocast.it - Welcome to Qmail Toaster Ver. 1.3 SMTP Server
Connection closed by foreign host.
---end logs ---
You have a long delay after success connection till 220 response
Your server may be busy? No mem? dns problems? or anything else,
can you give us :
'w' and 'free -m' ?
--
T.Bogdan
http://www.direkt.ro
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