http://www.cyberciti.biz/faq Every answer asks a more beautiful question. Fri, 03 Feb 2012 22:38:32 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 http://www.cyberciti.biz/faq/postfix-multiple-isp-accounts-smarthost-smtp-client/ http://www.cyberciti.biz/faq/postfix-multiple-isp-accounts-smarthost-smtp-client/#comments Fri, 13 Mar 2009 18:00:32 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=3447 How do I support multiple ISP accounts in the Postfix SMTP client (smarthost) for relaying email? For example:

[a] user1@isp1.com must be relay via smtp.isp1.com.
[b] user1@isp2.com must be relay via smtp.isp2.com.
[c] me@mycorp.com must relay all my default email via smtp.mycorp.com.
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