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.
]]> http://www.cyberciti.biz/faq/postfix-multiple-isp-accounts-smarthost-smtp-client/feed/ 4 http://www.cyberciti.biz/faq/postfix-smtp-authentication-for-mail-servers/ http://www.cyberciti.biz/faq/postfix-smtp-authentication-for-mail-servers/#comments Thu, 12 Mar 2009 14:00:22 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=3433 My ISP requires that mail from my dynamic IP to our small business email addresses uses their outgoing SMTP servers. This is probably done to reduce abuse and spam but now I'm not able to send email and local Postfix log file displays authentication failure message. How do I relay mail through my mail ISP servers using Postfix SMTP under Linux / UNIX like operating systems? ]]> http://www.cyberciti.biz/faq/postfix-smtp-authentication-for-mail-servers/feed/ 13