[Asterisk-Users] Voicemail notification email with no attachment despite attach=yes

[Jean-Marc V. Liotier]

The demo 1235 extension that Asterisk ships with works fine and the
messages are sent to the address I set in voicemail.conf. I guess that
means that my configuration is working perfectly so far.

But when I set up another extension with a voicemailbox, no mail is sent
when a message is left, although I can dial voicemail and listen to the
message just fine which I guess rules out voicemailbox misconfiguration.

The strange thing is that both extensions and mailboxes are configured
exactly the same :

in extensions.conf :
exten => 1235,1,Voicemail(u1234)                ; Right to voicemail
exten => 6004,1,Voicemail(u6004)

in voicemail.conf :
1234 => 4242,Test mailbox,jim at jipo.com
6004 => 4242;Other test mailbox,jim at jipo.com

I don't understand why these two seemingly identical configuration yield
different results. I guess that I must have missed something that was
included in the example and not in my new mailbox. Could somebody give
me a hint about what it could be ?