Re: Attaching files to SMPT Mail

On Fri, 25 Mar 2005 14:38:50 -0800, Ken Linder <kc7rad@radstream.com> wrote: > Thanks Justin, > At first, I though to my self, how can I be so stupid? Then, after > researching it a bit more and doing a little debugging with one of the > e-mail system developers, I realized my confusion was justified. > > This is from Rick Muething (ham- KN6KB), one of the developers for the > winlink2000 e-mail and message system (www.winlink.org)::: > =========== > Winlink and AirMail handle attachments using a B2 encapsulation protocol > (not MIME) over the air because of efficiency (this is about 20-25% more > efficient). > > The message is received by Winlink. HTML is converted to plain text. (again > for size). Attachments are normally received in MIME format and then > extracted, virus checked, and B2 Encapsulated for transmission. > =========== > Also, this... > =========== > OK I have the captured mime file. It uses some unusual (probably still > legally acceptable) mail formats like Multipart/related . The receiver > fails to decode it completely which is why the attachment is missing. > =========== > So... I should be able to send a MIME e-mail to the winlink system, it will > translate it to B2 encapsulation, and send it on to the client. > > What I am trying to do is use PHP/PEAR to process requests for weather and > emergency information and respond by generating a very lightweight web page > or sending an e-mail. The e-mail part works fine, unless it is going to a > requestor that might be using WinLink... Unfortunately, these are the > target users for the e-mail portion of the system. > > I am not a Super-Duper-Email-Programmer so I don't know where to start > experimenting. Any help would be appreciated. > > My project page is at www.radstream.com/radview/ It is a bit out of date > but I hope to freshen it up later today. > Well, I don't see anything on the web about this B2 format. My guess is it's a proprietary format which their system uses. And as they say they will convert mime to their format. If you haven't already, get PEAR's Mail_mime package. You can make an e-mail with only text or only html or both and attach files easily. Then you can use PEAR's Mail package to send it. It's very simple. > Ken > ham-KC7RAD > > ----- Original Message ----- > From: "Justin Patrin" <papercrane@gmail.com> > To: "Ken Linder" <kc7rad@radstream.com> > Cc: <pear-general@lists.php.net> > Sent: Wednesday, March 23, 2005 10:07 AM > Subject: Re: [PEAR] Attaching files to SMPT Mail > > > On Tue, 22 Mar 2005 23:44:02 -0800, Ken Linder <kc7rad@radstream.com> > wrote: > > > Quick question, > > > I have the SMTP and MIME mail functionality working OK. I attach an > image > > > to the MIME message and send it out OK. OE and Eudora receive it fine. > > > BUT, the e-mail client I have to write for does not understand MIME. > How do > > > I attach something to a simple SMTP e-mail? > > > > > > > Attachments to e-mails, by definition, change the message to a > > multi-part MIME message. You can't attach a file without using MIME > > unless you use a URL, which isn't really attached. I suggest adding > > MIME handling to the e-mail program you're writing. PEAR's Mail_mime > > can parse mime message as well as create them. :-) > > > > -- > > Justin Patrin > > -- > PEAR General Mailing List (http://pear.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > -- Justin Patrin