[Asterisk-Users] Empty voicemail attachments?

[Andrew C. Brown]

I have Asterisk newly setup. When a voicemail is left, Asterisk emails 
out the voicemail as a wav file attachment (in voicemail.conf, 
append=yes) but the attachment always ends up having a size of 0 bytes 
and no content to play.

Diagnosis steps taken so far:
     I used Kmail to manually send myself a local email with an 
attachment and that came through whole.
    I looked at the wav files stored in the spool directories and they 
are complete and playable as expected
    But the content of the file doesn't make it through email.

Any ideas anyone can offer as a possible cause of this problem?
Thanks a mil

voicemail.conf:

format=WAV|wav|gsm
append=yes
serveremail=blah at myhost.tld
[default]
222 => 1234,Joe,joe at myhost.tld