p.mayers at imperial.ac.uk
Fri Jul 22 09:13:16 UTC 2011
On 07/22/2011 09:50 AM, Feng He wrote:
> Given the MX hosts for sympatico.ca domain:
> $ dig sympatico.ca mx +short
> 5 mxmta.sympatico.ca.
> $ dig mxmta.sympatico.ca +short
> when the peer MTA fail to talk to one of these hosts,will it try the
> next one? or it just give up?
It should try the next one, but there is a lot of crappy MTA software
See section 5 of RFC 5321, or earlier RFC 2821, or section 5 of RFC 1123
and earlier RFCs 821 and 974, for details.
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