> I discovered an anomaly in our exim_mainlog which appears to be
> exim sending retries for a failed message with no delay in between.
> H=mta6.am0.yahoodns.net [98.136.96.75]:25:
> H=mta6.am0.yahoodns.net [67.195.204.73]:25:
> H=mta6.am0.yahoodns.net [67.195.228.106]:25:
> H=mta6.am0.yahoodns.net [67.195.204.72]:25:
> H=mta6.am0.yahoodns.net [67.195.228.110]:25:
Same hostname, several IP-addresses.
~ $ dig +short yahoo.com mx
1 mta7.am0.yahoodns.net.
1 mta5.am0.yahoodns.net.
1 mta6.am0.yahoodns.net.
~ $ dig +short mta6.am0.yahoodns.net
67.195.228.110
67.195.228.109
98.136.96.76
67.195.204.79
98.136.96.75
67.195.228.94
98.136.96.91
67.195.204.73
Currently yahoo has total 14 IP-addresses of incoming (mx) servers.
Exim tried 5 of them. Sounds reasonable for me.
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