Re: SPF SRS sender re-writing
Jonathan Tripathy: Hi Folks, As many of you will probably know, SPF breaks forwarding using aliases. The solution is to re-write the from-evenlope when forwarding email. Does anyone know how to do this with postfix? With an external MILTER program (Postfix = 2.6): http://www.postfix.org/MILTER_README.html Or with an external content filter (Postfix = 1.0): http://www.postfix.org/FILTER_README.html Wietse
Re: SPF SRS sender re-writing
Thanks for the reply. Are you aware of any Postfix implementations? On 21/02/2010 14:33, Wietse Venema wrote: Jonathan Tripathy: Hi Folks, As many of you will probably know, SPF breaks forwarding using aliases. The solution is to re-write the from-evenlope when forwarding email. Does anyone know how to do this with postfix? With an external MILTER program (Postfix= 2.6): http://www.postfix.org/MILTER_README.html Or with an external content filter (Postfix= 1.0): http://www.postfix.org/FILTER_README.html Wietse
Re: SPF SRS sender re-writing
On Sun, 21 Feb 2010, Jonathan Tripathy wrote: Are you aware of any Postfix implementations? Please, don't top-post. And there is no Postfix implementation; that is why you need to find/use a milter or external content filter. -- Sahil Tandon sa...@tandon.net
Re: SPF SRS sender re-writing
Jonathan Tripathy: Thanks for the reply. Are you aware of any Postfix implementations? Postfix implements SPF SRS DKIM DomainKeys SenderID BATV and so on exclusively via plugins. Just like Postfix implements deep content inspection. I don't bake my own bread, and I don't make my own shoes or clothes. Instead, I get them from people who specialize in doing such things. This is how society has been making progress for thousands of years. I expect that this approach is also good for the Internet. Wietse On 21/02/2010 14:33, Wietse Venema wrote: Jonathan Tripathy: Hi Folks, As many of you will probably know, SPF breaks forwarding using aliases. The solution is to re-write the from-evenlope when forwarding email. Does anyone know how to do this with postfix? With an external MILTER program (Postfix= 2.6): http://www.postfix.org/MILTER_README.html Or with an external content filter (Postfix= 1.0): http://www.postfix.org/FILTER_README.html Wietse
Re: SPF SRS sender re-writing
On 21/02/2010 16:45, Wietse Venema wrote: Jonathan Tripathy: Thanks for the reply. Are you aware of any Postfix implementations? Postfix implements SPF SRS DKIM DomainKeys SenderID BATV and so on exclusively via plugins. Just like Postfix implements deep content inspection. I don't bake my own bread, and I don't make my own shoes or clothes. Instead, I get them from people who specialize in doing such things. This is how society has been making progress for thousands of years. I expect that this approach is also good for the Internet. Wietse On 21/02/2010 14:33, Wietse Venema wrote: Jonathan Tripathy: Hi Folks, As many of you will probably know, SPF breaks forwarding using aliases. The solution is to re-write the from-evenlope when forwarding email. Does anyone know how to do this with postfix? With an external MILTER program (Postfix= 2.6): http://www.postfix.org/MILTER_README.html Or with an external content filter (Postfix= 1.0): http://www.postfix.org/FILTER_README.html Wietse Yes, I understand that we have to use Milters and/or external plugins made by other people. I just can't find any that show me how to make it work with Postfix.
Re: SPF SRS sender re-writing
Jonathan Tripathy: Are you aware of any Postfix implementations? Wietse: Postfix implements SPF SRS DKIM DomainKeys SenderID BATV and so on exclusively via plugins. Just like Postfix implements deep content inspection. Jonathan Tripathy: Yes, I understand that we have to use Milters and/or external plugins made by other people. I just can't find any that show me how to make it work with Postfix. See the Postfix documentation for how to connect a plugin to Postfix, and for how to configure the mail server features that the plugin requires. http://www.postfix.org/FILTER_README.html has examples for very ancient versions of DKIM and SenderID plugins. Generally, documentation that covers components from different providers is either outdated by several years or has major errors. Your best bet is to read the *current* docs of the individual packages and to put A plus B together (or pay someone for the job, but that won't be me). Wietse
