Re: [Exim] Dealiang with broken MTAs

> I've been using callouts here for about two years, and while I have
> found them to be immensely effective I can second the comment that
> Imail servers are frequently a problem. There is a reference
> to the issue here at the bottom of this link:
>
> http://support.ipswitch.com/kb/IM-19980116-DD02.htm

How can I tel if someone is using imail?

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