From: John Knappers (jknappers-argentiahotmail.com)
Date: Tue Oct 03 2006 - 09:17:42 CDT

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>
>John Knappers wrote:
>
>>>>Now the problem is completely claer, can you (or anyone else) assist me
>>>>with the awk script additions to do this, because my scripting knowledge
>>>>is not suffient for this. :(
>>>
>>>Is user1example1.com the same as user1example2.com?
>>Not always,
>>Depents on how generic table. This makes it more difficult
>
>Not much more difficult. You only have to add another decision.
>
>>>
>>>>I have a relay_recipients_maps with all valid mail addresses, but only
>>>>for the consolidated domains, and I have a generic_maps file, with what
>>>>olddomains will be rewritten to what newdomains.
>>>>Or is there an other around / better way solve this setup problem?
>>>
>>>So you just need to grab the local part of each address in the incomplete
>>>relay_recipient_maps and add the generics domains to it, write the
>>>address
>>>into a new file and then postmap it and set it up as
>>>relay_recipient_maps.
>>>
>>># Just add these lines to your script
>>>#
>>>domains=("example1.com" "example2.com" "example3.com")
>>>#
>>>cat in_complete_relay_recipient_maps | while read line;
>
>grep "example.com" cat in_complete_relay_recipient_maps | while read line;
>
>>>do
>>>{
>>> user_name=`echo $line|cut -f1 -d""`
>>> for i in `echo ${domains[*]}`; do
>>> echo -e "$user_name$i" >> /etc/postfix/relay_recipients
>>> done
>>>}
>>>done
>
>Do another grep run for the other domain and adapt the domains list. There
>are many ways to do this, but this is probably the easiest for you to
>understand.
>
>>>
>>Tonight I'm gonna try this.
>>
>>This looks almost complete, but now every user has an mailaddress in every
>>oldmaildomain. If this the limit for scripting maybe I need to accept this
>>compromise.
>
>See above. You can do almost anything with scripting/programming. What you
>haven't seen is, that while the script will probably do exactly what you
>want, there are no checks to verify that the script will only produce the
>desired output.
>
>One example is that the script assumes that there are NO empty lines in
>in_complete_relay_recipient_maps. If an empty line is processed by that
>script then the result would be...
>example1.com OK
>example2.com OK
>...
>
>Which would make all the effort go to waste. The grep command will also
>take care of that, since only lines which have example.com in it are given
>to the script to be processed.
Ok, tonight I will try this.
Thanx for your effort. Some people say to me, you know a lot about Postfix,
I reply them with, there always people be who knows more about it or are
better then me, and sometimes I ask them for help.

>
>>>If you have a long list to process you might want to use a perl script.
>>>This shell script is not the fastest.
>>The table is not to large, So I think shell scripting will do for me, But
>>if someone is willing to write a perl script for this, it would maybe a
>>good idea to publish it somewhere in the howto and faqs page on the
>>postfix website. The their effort servers a larger comunity.
>
>Everyone has different needs, so it's just not practical to post a script
>for general usage. The only common basis is that you have a file with valid
>addresses.
>
>>>>I accept only mail for the standard aliases which RFC want to be present
>>>>(postmaster /abuse / etc)
>>>>If the mailaddress$myhostname doesn't resolve to a valid mailaddress,
>>>>it bounce with user unknown. What is the problem with it? Or better
>>>>asked: Do I miss anything, what I shouldn't miss?
>>>
>>>Does it really REJECT mails to invalid addresses or does it accept the
>>>mails first and then BOUNCE the mails to the forged sender of the spam?
>>>
>>You mean if you don't specify a local_repipient_maps, mail for non local
>>users will be accepted and rejected afterwards, resulting that my
>>gatewaymailserver is responsible for delivering the Delvery Notification,
>>which of cause fail by faked sender addresses?
>>I will check this out.
>
>No, if you don't specify a local_recipient_maps, the DEFAULT value for
>local_recipient_maps is used. "postconf -d local_recipient_maps" gives
>local_recipient_maps = proxy:unix:passwd.byname $alias_maps
>
>If you specifically add "local_recipient_maps = ", you deactivate the
>default with the result that no local_recipient_maps is checked.
>
>Please check carefully if you bounce or actually reject. According to your
>setup I would say you bounce (accept and later reject the complete mail).
>
Your were right, I did miss something what I shouldn't miss. It accepted and
then bounced. I commented out the "local_recipients_maps =" and now unkwon
users are rejected before end of SMTP talking as it should

John

>Sandy
>--
>List replies only please!
>Please address PMs to: news-reply2 () japantest (.) homelinux (.) com

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