Thoughts off the top of my head:

The first three were mentioned above, and in better detail than I could do.

What do I mean by that last one? The possibility of invalid data (invalid character in or bad/unexpected email address/name/whatever). You might consider wrapping your sending code/call in an eval() statement then examining the values of the $!, $@, $?, and/or other variables (as appropriate to your code) and logging any content they have (along with the data you used on that pass).

I hope that helps, and hope what monks wiser than I will chime in, so we both may learn.

In reply to Re: Program hangs by atcroft
in thread Program hangs by Stegalex

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