fax2email feature based on SpanDSP has been added in the Switchfin trunk

How it works?
Currently we don't have the fax2email feature GUI configurable so it needs to be done manualy in the config. files.
First you need to verify that your ssmtp agent is up and running. For details you may check SSMTP MTA with attachments built in Switchfin
Then please create a DAHDI or SIP channel (you can use GUI for this) and put it in the context similar as the following:

[fax]
exten => 300,1,Answer()
exten => 300,2,Set(FAX_FORCE_V29=1)
exten => 300,3,RXFax(test.tif)
exten => 300,4,System(/bin/mailfile.sh test.tif  This e-mail address is being protected from spambots. You need JavaScript enabled to view it )
exten => 300,5,Hangup()

That's it, Have fun!