SMTP Relay

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Author Message
Alem
Posted on Wednesday, November 06, 2002 - 06:28 pm:   

Hi,

I'm trying to send MMS message over SMTP relay. I receive MMS notification, but when I download the message it is empty. What could be the problem?
I'm using HTTP port 80 and SMTP port 25.
My SMTP Relay host is MS Exchnage Server 2000.
Alem
Posted on Wednesday, November 06, 2002 - 06:54 pm:   

Everything is ok now. I was attaching wrong MMS file (an empty MMS). Now everything is working just fine.
But...
I'm also testing Ericsson's MMSC which has something different SMTP relay implementation.
When a MMS message is sent via SMTP it is sent in MIME format. SMIL, GIFs, JPEGs, texts and sounds are just body parts (attachments) in one email message. I supose when this mail hits MMSC, MMSC is extracting all elements and constructing a MMS message in binary format that is then sent to the device.
Is it possible for you to implement similar behaviour (using MMSCOMP)?
Bryce Norwood - NowSMS Support (Bryce)
Posted on Wednesday, November 06, 2002 - 08:44 pm:   

Alem,

Glad to hear you got the SMTP relay issue sorted.

I'm not sure that I understand your question. We do SMTP MIME to MMS conversion in the e-mail processing, so you can attach SMIL, GIF, JPG, sound, text, etc. (In fact, we just added the ability to support pre-compiled "MMS" files in the e-mail interface in our latest release, v3.10. Prior to that, we were expecting to do the "MMSCOMP" in the e-mail processing.)

But we definitely do all of those conversions. If you think about it, they are really essential ... when a mobile phone user sends a message to an e-mail recipient, you want the e-mail recipient to receive individual parts, not a compiled binary message.

Similarly, the e-mail user should be able to take that message with the individual components, and forward it back out to another phone.

As you're testing the Ericsson MMSC, I'd be curious how it handles when a Nokia 7650 sends a message to an e-mail recipient, and the e-mail recipient forwards the message back out to a 7650. We found some interesting differences in how the Nokia 7650 builds messages, and what you have to do to convert them into something meaningful for a typical e-mail client. I'm just curious if there are any issues there with the Ericsson MMSC.

-bn
Alem
Posted on Thursday, November 07, 2002 - 01:21 pm:   

Thnx, Bryce.

I did some more testing, and it works fine. I had a little trouble with a structure of MIME message.

Regarding Nokia 7650 and Ericsson MMSC, as soon as I get 7650 device I'll test it and let you know about the results.
Somya
Posted on Thursday, September 25, 2003 - 10:31 am:   

How any MM4 message ( MM4_forward.REQ) is sent over SMTP using SMTP commands.I want to know that what type of conversion will take place and How?Why X-mms extension is added to the information fields of the MM4 message.
What will be in SMTP header?