Hi Wietse, Okay, I got it.
PS: Attachment is my patch for this support based on postfix 2.8.8. If someone want to same support, you can use it or contact with me. Regards, King Cao 2013/7/17 Wietse Venema <[email protected]> > King Cao: > > I see your point. But current MX support will also cause this > > problem. For example, if we configure the transport: "example.com > > smtp: mx.example.com:25" which is supported by all Postfix version. > > smtp daemon(smtp/smtp_connect.c) will query all MX records of > > "mx.example.com" and try these mx records one by one according to > > preference. > > That is how SMTP is defined in the Internet mail standard. > Postfix is optimized for the common scenario. > > > My suggestion is that can we put such MX records into transport > > directly to avoid DNS querying? > > There is no need to optimize Postfix for uncommon use cases. Spammers > can use separate transports each with their own source IP address, > fallback relay settings, and so on. > > Wietse >
postfix-2.8.8-multiple-destinations.patch
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