On 03/10/2011 12:32 PM, kshitij mali wrote:
Thanks Jeron ,
thanks again for taking interset to my case .
The thing is that i dont get spam any more .
The last incidient was like one of our application server in the
infarsturture uses my relay server
to relay email in the internet what the unix adminstartor of the
application did was diverted all syslog allert to the email address of
his . suddenly there was some peoblem with the application server and
start firing emails around 30,000 to the his email id sudden there was
resource utilization on my postfix relay and queue started builtting up .
I'm having trouble relating "a sysadmin screwed up an application's mail
configuration" to "spam".
though the sender application was sending to wrong recipient email
adress the 30,000 Mailerdeamon got establised the sender mail server
is an production application server i cannot reject him or block him
by giving reject action .
What is the suggested option is to hold the mail in the queue and wait
for the responce on the customer
So the HOLDing of email is necessary
Well, no, since it still involves a lot of manual intervention AND a
guarantee that the sysadmin won't screw up again.
A better preventative measure would be to throttle outgoing mail to this
customer, so he will never get flooded like this.
can u explain what types of cutome tranport rule we can apply with
example/syntax in configuration
This is not something ready-made, as postfix has no native logic for
catching or preventing misconfiguration - especially of non-postfix
software.
please find the current config
=============================================
smtpd_sender_restrictions = check_sender_access hash:/etc/postfix/sender_hold
smtpd_recipient_restrictions = reject_non_fqdn_recipient,
check_recipient_access hash:/etc/postfix/recipient_access,
permit_mynetworks, reject_unauth_destination
smtpd_client_restrictions = check_client_access
cidr:/etc/postfix/network_table, reject
smtpd_client_restrictions = check_client_access
hash:/etc/postfix/access_client, permit
=====================================================
Regards,
Kshitij
+91 9967490880
On 3/10/11, Jeroen Geilman<jer...@adaptr.nl> wrote:
On 03/10/2011 08:23 AM, kshitij mali wrote:
HI All ,
My self kshitij and i am using postfix MTA for mailing service around
1.5 year EXP.
I want to built an new coustome queue same as like HOLD queue .
currrent sinerio is like i donot want any mail to be rejected as per
my mangement instruction
That's a pretty vague instruction - for what reason ?
Applying this blindly will cause a lot of spam to be processed.
all the filter i applied on the smtpd_*_restriction i have given the
HOLD Action .
Yes, they're not really suited for that.
Consider using a custom transport instead that delivers it somewhere you
can control it further.
so the Hold dir keeps on growing in which makes me tough to search and
release the mail from the queue.
Unless you have a trivial amount of email, this is not a manual labour task.
Stright forward is i would like to have different queue (like HOLD)
for different filters i have applied .
And then what ?
If you could explain the ultimate requirement, we might be able to offer
a suitable solution.
--
J.
--
J.
