Comment 2 for bug 266230

The original bug reported here was fixed in 2.1.6rc3.

The problem in David Beecher's comment appears to be due to a malformed message with a multipart/alternative part with no sub-parts. Possibly the original message had alternative parts that were removed prior to collapse_multipart_alternatives processing.

If possible, please attach or send me the .pck file from the shunt queue that was produced by this error.