Technical Support wrote:
> Has anyone configured ast_fax (sending faxes via asterisk) with 
> sendmail?  The creation of rules to trap all numbers 
> XXXXXXXXXXX@domain.com <mailto:XXXXXXXXXXX@domain.com> seems too 
> complicated.  Does anyone have setup details to share?  (I don't want 
> to switch MTA's).
>  
> As a workaround, I could launch the app automatically from 
> sendmail using an alias like:
>  
> fax:    "| /ast_fax"
>  
> That way sending to fax@domain.com <mailto:fax@domain.com> is easily 
> handled by the sendmail program (without complex rules for numbers at 
> the TO:) and launches the ast_fax app.  The phone numbers to fax to 
> could be entered into to subject line of the email.
>  
> I looked at eps (address.c) and and ast_fax (ast_fax.c) and it looks 
> like all that is needed is modifying address.c (or copy it so 
> subject.c) to extract from the Subject line instead of the To line.  
> Making this even more useful would be adding a parameter to the .call 
> file which tells ast_fax to extract phone numbers from either the TO: 
> line (default) or the SUBJECT line.
>  
> I'm wondering if something like this has already been done?  (I 
> wouldn't want to reinvent the wheel)....
> Alternatively, does someone have a working sendmail config to share?
>  
> Thanks
> MD
On my mail server, I added this to the virtusertable
    fax@domain.com                            fax%3@asterisk.domain.com
Then on the Asterisk server, I put this in the virtusertable:
    fax@domain.com                    fax
Then on the Asterisk server, put this in your aliases:
    fax:   "|/ast_fax"
The only drawback to this is the email address is formatted like this:
fax+8005551234@domain.com
I could live with this as it actually makes for a more flexible 
solution.  You can use an address like call+8005551234 and it do 
something different from faxing.
Mark