Odd email errors

[Ed Greshko]

On 04/29/2012 08:17 AM, Ashley M. Kirchner wrote:
>
>     Anyone here seen these before?  It seems some e-mails are getting through and
> others aren't, and those that don't produce this error:
>
>    ----- Transcript of session follows -----
> 550 5.1.2<kirash4 at gmail.com>... Host unknown (Name server:
> alt4.gmail-smtp-in.l.google.com.: host not found)
>

Only on a DNS lookup failure.....

egreshko at meimei xorg.conf.d]$ host alt4.gmail-smtp-in.l.google.com
alt4.gmail-smtp-in.l.google.com has address 173.194.73.26

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