[Mimedefang] relay_is_blacklisted timeout

[Joseph Brennan]

We're going to join the world and use relay_is_blacklisted soon.

The function does a gethostbyname() and we don't understand what
happens if it hangs.  We were thinking the relay_is_blacklisted
function would have a timeout in it but it does not.

But no one seems to be reporting trouble.  What happens?

Joseph Brennan
Academic Technologies Group, Academic Information Systems (AcIS)
Columbia University in the City of New York