Re: [hylafax-users] Discarded application (pdf)

[Holger Raschke <holger.raschke@xxxxxxxxxxxxxx>]

Michele Della Marina schrieb:

> Sorry if this problem was posted several times. But I have not clear
> ideas. I have hylafax 4.1.6, I have installed metamail and I use
> postfix and squirrelmail to send fax through email. Receiving fax
> converted in pdf is all ok.
>
>
> I would like send a pdf attachment but in receiver fax machine the
> error occurs: discarded application / octet-stream goes here. I have
> read that is not possible send pdf (only ascii and ps) But I have
> also read this (in manual typerules): ..
>
>
> I'm not sure if this message means that you try to use faxmail?
> faxmail isn't able to handle pdf. see "man faxmail" for details.
>
>
>
>         Only three types of files are accepted by the HylaFAX server for
> transmission as facsimile: POSTSCRIPT® files, PDF files, and TIFF
>         Class F (bilevel Group 3-encoded) files. All other types of files
>         must be converted to one of these two formats. ..
>
>         What is the problem? Why can't I send a pdf attachment? Thanks Michele
>
>
> I believe that the sending of PDF is on a to-do list somewhere, and that
> the documentation is not completely correct there, IIRC. However it
> should be possible, in theory, to hack something together that does the
> conversion from PDF to PS and fax that.
>
>
>     Josh 
>
>
> Things are already "hacked". The actual sendfax accepts a pdf document for
> transmission an sends it correctly.
> If you want to send it to the hylafax-server via email you have to play a
> little with your local MDA. For procmail there were solutions posted that
> can be modified to fulfill your needs. Search the mail archives.
>
> --
> holger
> -------------------------------------------------
>
> I've tested that, using sendfax, is possible send directly a pdf document
> (as you correctly say) and all is ok.
> I've already configured postfix inserting some lines about hylafax mail
> delivery:
>
> /etc/postfix/master.cf:
>         fax       unix  -       n       n       -       1       pipe
>             flags= user=fax argv=/usr/bin/faxmail -d -n ${user}

I am not familiar with postfix-configuration: Does this mean, every mail 
is streamed through faxmail?
As i already mentioned, faxmail can't handle pdf-attachments. So you are 
stuck here.

What you need to configure is the local mail delivery 
(http://www.postfix.org/delivering.html) to strip off the pdf-attachment 
and pass it to sendfax.

Due to my lack of knowledge according postfix, i can't help further.

>     /etc/postfix/transport:
>         fax.your.domain   fax:localhost
>
>     /etc/postfix/main.cf:
>         transport_maps = hash:/etc/postfix/transport
>         fax_destination_recipient_limit = 1
>
> Sending a simple email (number@mydomain) (with ascii text attachment) is all ok.
> But Pdf attachment doesn't work. I don't understand if I have to modify the
> lines above about faxmail or if there are other mime problems.

man faxmail says:

MIME PROCESSING
       faxmail parses MIME mail messages and does some rudimentary work to:

       ·  strip out unprintable content such as audio, video, or binary 
data,

       ·  decode encoded parts,

       ·  insert ``digest dividers'' between multipart/digest subparts,

       ·  format message/rfc822 parts as described above for the 
top-level envelope, and

       ·  optionally convert graphical parts (e.g. images) for display.

       MIME processing is fairly simple and (currently) somewhat 
constrained.  faxmail has  builtin  support
       for the following MIME parts: text/plain, multipart/mixed, 
multipart/digest, message/rfc822, applica­
       tion/postscript, and application/x-faxmail-prolog.

What you need is a handling for a different mime-type (application/pdf).

> I've searched in mailing list archive but I've not found anything about this
> problem.

See http://www.hylafax.org/archive/2001-01/msg00107.html for a 
procmail-based solution. It was originally designed to work with the 
Relay-Fax-Printer-Client but can be modified to work without it.
AFAIK, postfix can be used with procmail as Mail-Delivery-Agent (MDA).

> Have I use necessary faxmail with postfix? Or is possible bypass faxmail
> using only postfix? In faxmail, I suppose, I have to link a script to
> convert pdf to ps but for sendfax is not necessary.

Don't use faxmail! It won't solve your problem.

--
Holger


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