MS gateway checking for valid users before delivery

[Pete Russell]

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If you want a perl script that will
1. query AD for ALL valid usernames
2. Build the map file in the correct postfix format
3. Postmap it and reload postfix
All you need to do is cron it and you have implemnted milter ahead for 
postfix and exchange, let me know and i will email it to you.

We have been using this for years and it works flawlessly and can be 
implmented in realtime without causing downtime.

Maybe its in the wiki too?



Chris Hammond wrote:
> Add the following two lines to main.cf
> 
> relay_recipient_maps = hash:/etc/postfix/auth_recipients
> show_user_unknown_table_name = no 
> 
> Create the file /etc/postfix/auth_recipients and add the allowed addresses in the following format.
> 
> user at domain.com  OK
> 
> Then run postmap against the file.
> 
> postmap /etc/postfix/auth_recipients
> 
> I always do a "service MailScanner restart".  Don't know if it is necessary and a postfix reload would do the job but this covers all the bases.
> 
> Just make sure that everyone that should get mail is in the list or they will not get it.
> 
> Chris
>  
> 

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