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Delay after content-filter
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Hello, I've got a weird problem and was hoping someone could point me in the right direction. I have a postfix server receiving mail for several domains (I have them set up as relay_domains and listed in relay_recipients). I want the server to send each message to a content filter on port 10024, then the content filter sends it back on... more »
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Mail Send domain verification
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Hi All, I am looking for a solution but don't find it to the net. Usually we restrict user to do SMTP based on network. The users from permitted network can use the mail server as SMTP server. Is there any way to restrict with domain also. As I permit certain network, there is some virus infected PC which use the SMTP server and send mail to various... more »
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Virtual alias in MySQL fails
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I got pretty impatient waiting for a response to my problems in alt.comp.mail.postfix, so I'll repeat myself here, in the hope that someone might know what to do. I'm basically stumped while setting up a new Postfix installation using a MySQL database from a previous installation (exact Postfix config... more »
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Question about multiple postfix instance, very strange
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I want to set up a postfix mail server which have many IP. Each of the ip will work for one of my customer. So that is means my customer will think that he has a dedicate mail server. But in fact all the mail server are running on one real machine. I think I can use the multiple instance feature to implement this requirement. So I setup 2... more »
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PREPEND not always working in smtpd_*_restrictions
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I'm seeing a strange behavior of postfix with PREPEND not doing anything on some conditions. So, lets say I want to add a header to every message based on the sender. I do : main.cf : smtpd_sender_restriction = check_sender_access pcre:/etc/postfix/ tag_sender /etc/postfix/tag_sender : /./ PREPEND X-Null-Sender: Yes... more »
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Writing customized content filter
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Hello everyone - i'm pretty new to postfix so bear with me please... i would like to know if there is a way to add your own content filter to postfix so that content filter will be able to "tell" postfix whether to proceed with the message processing/queuing or not based on rules which are defined in the filter itself ?... more »
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Postfix / Courier / MD5?
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Is it possible to use MD5 password encryption with Postfix (MySQL) and Courier? If so, where can I find reading material covering the configuration this setup?
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allow rcpt_to by domain in a list
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Hi all! I would like create a filter to only send mail for recipients in a domain list : domain1.com, domain2.fr, domain3.com and discard all mails for all recipients not in this domain list. i tried by a header_check but it's not a good solution. any idea? Thanks! Ciao ++
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allow senders of my domain via authentication only
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Dear All, can any body help me in implementing my scenario. i use postfix, to send emails of my users. i have allowed permit mynetworks of ( 10.0.0.0/8, 192.168.15.1/24....etc), So, All of my users are able to send emails from any domain to any domain , i have implemented MailScanner as well, which detect spam and stops.... more »
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