mx selection order

[Torinthiel]

Dnia 2011-02-22 20:29 Terry. napisał(a):

>Hello,
>
>Given I have these MX records:
>
>example.com.        3600    IN      MX      10  m1.example.com.
>example.com.        3600    IN      MX      10  m2.example.com.
>example.com.        3600    IN      MX      20  m3.example.com.
>
>
>My question is, when m1.example.com is failed to communicate with, the
>remote MTA will continue to talk to m2 or m3?


From the beginning: MTA should randomly try m1 or m2, if it fails then the 
other one, and if both fail than m3.
algorithm is simple:
try random one from amongst ones with lowest precedence, discarding those 
failed.
Torinthiel