Attachment file conversion

Scott Silva ssilva at
Mon Apr 25 22:00:11 IST 2011

on 4/25/2011 7:05 AM Michael Masse spake the following:
> We are in the process of changing voicemail vendors and this new vendor sends
> voicemail attachments in .wav format only.   Our old vendor used mp3.    I
> really don't like the idea of using 10x the disk space for the attachments
> which people tend to hang on to forever.    Is there some way that MailScanner
> can call an external program to modify an attachment while it has an email
> disassembled, and then reassemble the email and foward on?   Specifically I'd
> like to convert the wav attachments to mp3 via some external program, and then
> reassemble the email and forward it on so that the user really doesn't know
> the file is being converted?    I started to look at procmail to see if it
> could do this, but I don't know how I would get it to reassemble the email
> back together again.   Any clues would be greatly appreciated.
> -Mike
There is the option to zip attachments. May not be what you want, but the size
reduction might help.

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