Thanks Mark for your help. The 2002DEV package fixed the problem. Now my webmail server displays "INVALIDADDRESS@.SYNTAX ERROR." on an invalid "To:" field, which is much better than preventing a login from happening. I am also going to write the maintainer of our IMAP server and pass this information along.
> It is indeed the IMAP server sending bogus IMAP: > (NIL NIL NIL "ubishops.ca") > is not a valid IMAP envelope, since the third element can only be NIL to > indicate the end of a group. > > Nevertheless, c-client should not crash. It turns out that I've already > fixed it in imap-2002. Get the latest imap-2002 development snapshot: > ftp://ftp.cac.washington.edu/mail/imap-2002.DEV.tar.Z > > That IMAP server also seems to be sending bogus text sizes, so you will > probably have other problems with it. CU L8R... -------------------------------+--------------------------------------- Todd A. Aiken | This space can be yours, for just four Systems Administrator | easy payments of $39.95. Plus, buy Cole Computer Centre | one half and get the 2nd half for 50% BISHOP'S UNIVERSITY | off the cost of the two together! Lennoxville, Quebec, CANADA | Call 1-800-4-RIPOFF today! -----BEGIN GEEK CODE BLOCK----- Version 3.12 (http://www.geekcode.com) GCS$/MU d+(-) s++:++ a27 C++$ UL++++$ P+ L++ E->+ W+>++ N++ o? K- w O- M V? PS PE- Y PGP- t+ 5 X R- tv+ b DI(+) D+ G e+ h !r>r+++ y- ------END GEEK CODE BLOCK------