cloud
-------
----------Main.cf---------------
### add this at last
smtp-gmail_destination_rate_delay = 10s
smtp-gmail_destination_concurrency_limit = 5
smtp-gmail_destination_recipient_limit = 10
smtp-gmail_initial_destination_concurrency=10
smtp-yahoo_initial_destination_concurrency = 1
smtp-yahoo_destination_concurrency_limit = 1
smtp-yahoo_destination_recipient_limit = 5
smtp-yahoo_destination_rate_delay = 20s
smtp-hotmail_destination_rate_delay = 20s
smtp-hotmail_destination_concurrency_limit = 1
smtp-hotmail_destination_recipient_limit = 10
smtp-hotmail_initial_destination_concurrency=1
smtp-aol_destination_rate_delay = 20s
smtp-aol_destination_concurrency_limit = 1
smtp-aol_destination_recipient_limit = 10
smtp-aol_initial_destination_concurrency=1
initial_destination_concurrency = 1
default_destination_concurrency_limit = 1
default_destination_rate_delay = 6s
----------master.cf---------------
smtp inet n - n - - smtpd
smtp-gmail unix - - n - 1 smtp -o syslog_name=custsmtp-gmail
smtp-yahoo unix - - n - 1 smtp -o syslog_name=smtp-yahoo
smtp-hotmail unix - - n - 1 smtp -o syslog_name=smtp-hotmail
smtp-aol unix - - n - 1 smtp -o syslog_name=smtp-aol
smtp-outlook unix - - n - 1 smtp -o syslog_name=smtp-outlook
smtp-live unix - - n - 1 smtp -o syslog_name=smtp-live
smtp-msn unix - - n - 1 smtp -o syslog_name=smtp-msn
submission inet n - n - - smtpd
------Transport------------
gmail.com smtp-gmail:[202.4.96.36]
yahoo.com smtp-yahoo:[202.4.96.36]
hotmail.com smtp-hotmail:
aol.com smtp-aol:
outlook.com smtp-outlook:
live.com smtp-live:
msn.com msn.com:
---------
/etc/postfix/transport
/\@gmail\.com$/ smtp-gmail:
/yahoo(\.[a-z]{2,3}){1,2}$/ yahoo:
/\@hotmail\.com$/ hotmail:
/\@live\.com$/ hotmail:
/\@msn\.com$/ hostmail:
/\@windowslive\.com$/ hotmail:
----