: UGFzc3dvcmQ6
Aug 9 19:48:27 mx postfix/submission/smtpd[3731732]: too many errors
after AUTH from unknown[5.31.8.57]
Since system has warned that "too many errors after AUTH ", is there a
policy setup to stop this kind of IP? i know fail2ban, but that's a
standalone service, not
ning:
> unknown[5.31.8.57]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
> Aug 9 19:48:27 mx postfix/submission/smtpd[3731732]: too many errors
> after AUTH from unknown[5.31.8.57]
>
> Since system has warned that "too many errors after AUTH ", is there a
> policy setup t
]: too many errors
after AUTH from unknown[5.31.8.57]
Since system has warned that "too many errors after AUTH ", is there a
policy setup to stop this kind of IP? i know fail2ban, but that's a
standalone service, not integrated into postfix itself.
https://www.spamrats.com/ bes
pd[3731732]: too many errors
> after AUTH from unknown[5.31.8.57]
>
> Since system has warned that "too many errors after AUTH ", is there a
> policy setup to stop this kind of IP? i know fail2ban, but that's a
> standalone service, not integrated into postfix itself.
Hello list,
I saw many logs like this in our server log,
Aug 9 19:48:27 mx postfix/submission/smtpd[3731732]: warning:
unknown[5.31.8.57]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Aug 9 19:48:27 mx postfix/submission/smtpd[3731732]: too many errors
after AUTH from unknown[5.31.8.57
> Dnia 18.05.2021 o godz. 19:46:30 Juerg Reimann pisze:
> >
> > I have a customer with a newsletter that has apparently a large number of
> > invalid email addresses. When he tries to send mail through my server,
> > postfix cuts the smtp session after a while with &quo
> > Hi there
> >
> > I have a customer with a newsletter that has apparently a large
> > number of invalid email addresses. When he tries to send mail
> > through my server, postfix cuts the smtp session after a while
> > with "too many errors after RCPT
Hi there
I have a customer with a newsletter that has apparently a large number of
invalid email addresses. When he tries to send mail through my server, postfix
cuts the smtp session after a while with "too many errors after RCPT".
How can I allow him to send his newsletter, even t
Dnia 18.05.2021 o godz. 19:46:30 Juerg Reimann pisze:
>
> I have a customer with a newsletter that has apparently a large number of
> invalid email addresses. When he tries to send mail through my server,
> postfix cuts the smtp session after a while with "too many errors after
Juerg Reimann:
> Hi there
>
> I have a customer with a newsletter that has apparently a large
> number of invalid email addresses. When he tries to send mail
> through my server, postfix cuts the smtp session after a while
> with "too many errors after RCPT".
And I
On 05-18-2021 1:46 pm, Juerg Reimann wrote:
How can I allow him to send his newsletter, even though many false, no
longer valid email addresses? Preferably I'd like to only allow
I always wondered why my mail server gets repeatedly spammed with
invalid email addresses from spamsters. I wondered
/256 bits)
Apr 16 12:38:21 thebe4 postfix/smtpd[17093]: too many errors after EHLO
from zabbix-ext.domain.ltd[86.xxx.xxx.xxx]
Apr 16 12:38:21 thebe4 postfix/smtpd[17093]: disconnect from
zabbix-ext.domain.ltd[86.xxx.xxx.xxx] ehlo=2 starttls=1 noop=1 commands=4
smtpd_hard_error_limit = ${stress?{1
]: too many errors after EHLO
from zabbix-ext.domain.ltd[86.xxx.xxx.xxx]
Apr 16 12:38:21 thebe4 postfix/smtpd[17093]: disconnect from
zabbix-ext.domain.ltd[86.xxx.xxx.xxx] ehlo=2 starttls=1 noop=1 commands=4
And I dont have idea
postconf |grep "_error_limit"
smtpd_hard_error_limit = ${stre
natan maciej milaszewski:
> Hi
> I added zabbix to test connections - all works fine but sometimes i
> found in logs "too many errors after EHLO"
>
> logs:
>
> Feb 10 20:49:21 thebe4 postfix/smtpd[6609]: connect from
> zabbix.domain.ltd[xxx.xxx.xxx.68]
> Feb
Hi
I added zabbix to test connections - all works fine but sometimes i
found in logs "too many errors after EHLO"
logs:
Feb 10 20:49:21 thebe4 postfix/smtpd[6609]: connect from
zabbix.domain.ltd[xxx.xxx.xxx.68]
Feb 10 20:49:21 thebe4 postfix/smtpd[6609]: Anonymous TLS connection
establ
Alex:
> It sounds like it's safe to assume that properly configured and
> operating machines won't generate these RCPT and DATA errors?
I suppose that the word "error" speaks for itself.
Wietse
Hi,
On Tue, Dec 24, 2013 at 3:21 PM, Viktor Dukhovni
wrote:
> On Tue, Dec 24, 2013 at 03:11:11PM -0500, Wietse Venema wrote:
>
>> > Dec 24 11:33:10 mail02 postfix/smtpd[8603]: too many errors after DATA
>> > from unknown[23.92.90.231]
>
> NetRange:
On Tue, Dec 24, 2013 at 03:11:11PM -0500, Wietse Venema wrote:
> > Dec 24 11:33:10 mail02 postfix/smtpd[8603]: too many errors after DATA
> > from unknown[23.92.90.231]
NetRange: 23.92.90.224 - 23.92.90.239
CIDR: 23.92.90.224/28
OriginAS: AS19531
Alex:
> I'm receiving messages similar to the following on three mail servers
> on two separate networks with postfix-2.9:
>
> Dec 24 11:33:10 mail02 postfix/smtpd[8603]: too many errors after DATA
> from unknown[23.92.90.231]
> Dec 24 11:48:06 mail01 postfix/smtpd[14470]
Hi,
I'm receiving messages similar to the following on three mail servers
on two separate networks with postfix-2.9:
Dec 24 11:33:10 mail02 postfix/smtpd[8603]: too many errors after DATA
from unknown[23.92.90.231]
Dec 24 11:48:06 mail01 postfix/smtpd[14470]: too many errors after
RCPT
On 7/11/2012 7:47 μμ, Noel Jones wrote:
You can check your log for things like "authentication failed" for a
failed AUTH, or "sasl_username=" when successful.My fail2ban filter
contains:
warning: .*\[\](?::\d+)?: SASL \S+ authentication failed:
Thanks Noel,
I am using:
failregex = (?i):
(That's my new
>> idea for the day. I might not be awake enough yet. :) )
>>
>
> I decided to expand my fail2ban filtering as follows:
>
> failregex = reject: RCPT from (.*)\[\]: 550
> reject: RCPT from (.*)\[\]: 554
> reject: RCPT from (.*)\[\]: 450
> too m
ows:
failregex = reject: RCPT from (.*)\[\]: 550
reject: RCPT from (.*)\[\]: 554
reject: RCPT from (.*)\[\]: 450
too many errors after AUTH from (.*)\[\]
This works, but I am not sure if I should do it or not.
Any other feedback regarding this situation will be useful.
Regards,
Nick
7 04:04:55 vmail postfix/smtpd[3100]: too many errors after
> AUTH from mail.videco.com.ar[190.220.14.235]
> Nov 7 04:04:55 vmail postfix/smtpd[3100]: disconnect from
> mail.videco.com.ar[190.220.14.235]
Is this a submission port (587) or smtp (25)? You should use "-o
syslog_name=postf
On 7/11/2012 3:46 μμ, Nikolaos Milas wrote:
Since this server does not accept unauthenticated smtp connections
except only from our gateway server and requires AUTH for all others
Server config:
[root@vmail etc]# postconf -n
alias_database = hash:/etc/postfix/aliases,
hash:/etc/postfix/alias
On 7/11/2012 3:46 μμ, Nikolaos Milas wrote:
connectionsexcept only from our gateway serverand requires AUTHfor all
others,do the above log entries depictfailed login
As a side note: sorry for the word jamming in the message; it is due to
a relatively recent Thunderbird bug (those interested m
7 04:04:53 vmail postfix/smtpd[3321]: connect from
mail.videco.com.ar[190.220.14.235]
Nov 7 04:04:54 vmail postfix/smtpd[3184]: too many errors after AUTH
from mail.videco.com.ar[190.220.14.235]
Nov 7 04:04:54 vmail postfix/smtpd[3184]: disconnect from
mail.videco.com.ar[190.220.14.235]
Nov
d[4546]: > my.pc.host.name[x.x.x.x]: 421 4.7.0
our.server.name Error: too many errors
Postfix does not allow clients to send an unlimited number of
commands like NOOP or RSET.
The default setting is:
smtpd_junk_command_limit = ${stress?1}${stress:100}
This means: under server overload conditions
name[x.x.x.x]: 421
> 4.7.0 our.server.name Error: too many errors
Postfix does not allow clients to send an unlimited number of
commands like NOOP or RSET.
The default setting is:
smtpd_junk_command_limit = ${stress?1}${stress:100}
This means: under server overload conditions, Postfix
stfix/smtpd[4546]: > my.pc.host.name[x.x.x.x]: 421 4.7.0
our.server.name Error: too many errors
Oct 11 12:26:44 mail postfix/smtpd[4546]: too many errors after RSET from
my.pc.host.name[x.x.x.x]
The "postconf smtpd_hard_error_limit" output:
smtpd_hard_error_limit = ${stress?1}${stress:20
Tomas Macek:
> So my question is how can I get this error message on my own computer,
> when I did not sent any email to the server in last hour? According to
> this experience, this seems to be per server settings. Or am I missing
> something?
The error counter is a PER SESSION property. It st
I have Postfix 2.8.1 installation and I sometimes get the "4xx too many
errors" message. I understand, that this comes when the server is
overloaded and the server uses this for it's defence, when some clients or
even process
(http://tech.groups.yahoo.com/group/postfix-users
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