Re: [twsocket] [tsyncsmtpcli] Problem sending email to Exchange2000server

2005-10-05 Thread Guillaume MAISON
Pete Williams a écrit :
 Outlook Express works and can send external emails. *Also, Phoenix
 (which is an open source application and nothing to do with OE) can
 also send external emails*.
 So this seems to be a problem with ICS. One thing which may/may no be
 significant: our app just sends emails using SMTP. It doesn't read
 them via POP3 like Phoenix.

Three things you should do :
1. using a sniffer (look for Ethereal) check for what is sent through 
the smtp protocol to the Exchange server using Outlook Express. That 
way, you'll be able to see if there're special headers that are sent.

2. Check for the Phoenix source code and see if there's any workaround 
when connecting to Microsoft application

3. Do the same as in 1. but using Phoenix. And then compare the 
differences (or not) between 1. and 3. and then do the same with your 
own application.

 The mail server is on a customer site, so we don't have direct access
 to it.

No need. I think this is mainly due to some protocol requirements, not 
smtp or thing like that.

 We are at a loss at the moment. Does anyone have any idea what could
 be causing this?

have you checked if, for sending outgoing mails, user have to be 
registrated/logged to the exchange server, then getting some kind of a 
sessionID that might be used within the mail headers ?

Another thing to do is to use the telnet application and simulate a SMTP 
connection and see what's going on...
(FYI : telnet ip addr port)

HTH,

Best regards,
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Guillaume MAISON - [EMAIL PROTECTED]
83, Cours Victor Hugo
47000 AGEN
Tél : 05 53 87 91 48 - Fax : 05 53 68 73 50
e-mail : [EMAIL PROTECTED] - Web : http://nauteus.com

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Re: [twsocket] [tsyncsmtpcli] Problem sending email to Exchange2000server

2005-10-05 Thread Wilfried Mestdagh
Hello,

 1. using a sniffer (look for Ethereal) check for what is sent through

Or SocketSpy (user made).

 No need. I think this is mainly due to some protocol requirements, not

Or some email header. Some companies are 100% relying on their spam
filters, specially the ones who have spam filters that check the email
headers on 100% correct to decide if it is spam or not.

---
Rgds, Wilfried
http://www.mestdagh.biz

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Re: [twsocket] [tsyncsmtpcli] Problem sending email to Exchange2000server

2005-10-05 Thread Guillaume MAISON
Wilfried Mestdagh a écrit :
 Hello,

Hi Wilfried,

1. using a sniffer (look for Ethereal) check for what is sent through
 Or SocketSpy (user made).
Yep sorry :)
i'll remember next time ;)

No need. I think this is mainly due to some protocol requirements, not
 
 Or some email header. Some companies are 100% relying on their spam
 filters, specially the ones who have spam filters that check the email
 headers on 100% correct to decide if it is spam or not.

some are especially based upon the reply-to or the from field, and have 
to be registered e-mail address within the server (preventing spam 
relay),etc...


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Guillaume MAISON - [EMAIL PROTECTED]
83, Cours Victor Hugo
47000 AGEN
Tél : 05 53 87 91 48 - Fax : 05 53 68 73 50
e-mail : [EMAIL PROTECTED] - Web : http://nauteus.com

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Re: [twsocket] [tsyncsmtpcli] Problem sending email to Exchange2000server

2005-09-19 Thread Pete Williams
Hi

 Verify that OE use SMTP and don't use IMAP4.

It definately uses SMTP.

Pete

- Original Message - 
From: Francois Piette [EMAIL PROTECTED]
To: ICS support mailing twsocket@elists.org
Sent: Monday, September 19, 2005 4:03 PM
Subject: Re: [twsocket] [tsyncsmtpcli] Problem sending email to
Exchange2000server


 Verify that OE use SMTP and don't use IMAP4.
 Use a netwrok sniffer to see exactly what OE does and what your
program does (you can simply log
 what your program does).

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 --
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 Author of ICS (Internet Component Suite, freeware)
 Author of MidWare (Multi-tier framework, freeware)
 http://www.overbyte.be


 - Original Message - 
 From: Pete Williams [EMAIL PROTECTED]
 To: twsocket@elists.org
 Sent: Monday, September 19, 2005 12:23 PM
 Subject: [twsocket] [tsyncsmtpcli] Problem sending email to Exchange
2000server


  Hi
 
  (Before saying this is a server problem, read the whole message,
as
  it's got us confused)
 
  Our ICS-based email app (using TSnycSMTPCli) work fine most of the
  time. We have once instance though where when sending external
emails
  (i.e., emails that require to be sent over the internet, not
  internally) the application using ICS thinks it's sent, but the
email
  just disappears. Internal emails go fine.
 
  Now, the strange thing is that Outlook Express (connected as a
  SMTP/POP3 client) on the same machine as ICS *can* send external
  emails with no problem.
 
  Does anyone have any ideas as to why OE might be able to send, and
  TSyncSMTPCli might not? There are no errors reported by ICS.
 
  If anyone can help I'd be grateful.
 
  Pete Williams.
 
 
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Re: [twsocket] [tsyncsmtpcli] Problem sending email to Exchange2000server

2005-09-19 Thread Jake Traynham
Hello,

At 10:16 AM 9/19/2005, you wrote:
Hi

  Verify that OE use SMTP and don't use IMAP4.

It definately uses SMTP.

Are you absolutely sure?  We get customers emailing us all the time saying 
Outlook works fine, but your [SMTP based program] won't send emails 
outside of our domain!  It's always that Outlook is connecting to the 
server using IMAP and the settings on the server are set to allow those 
emails to relay or whatever.  I would double- and triple-check the 
settings on Exchange to make sure that emails coming in over SMTP can send 
out to the internet.  Exchange is a beast with way to many stupid settings.

The only other thing I can think of still has to do with the server side: 
see if there's some settings in Exchange that limit who can relay emails 
based on what type of authentication they use to access the server.  Maybe 
Outlook is using one type of authentication while your SMTP client is using 
a less secure method (or no authentication at all).

I hope this helps,
Jake


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Jake Traynham
Comm-Unity Networking Systems
FSA Associate Level Members
http://www.cnsplug-ins.com/

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Re: [twsocket] [tsyncsmtpcli] Problem sending email to Exchange2000server

2005-09-19 Thread Pete Williams
Hi

Are you absolutely sure? We get customers emailing us all the time
saying
 Outlook works fine

We get that too from our customers. Outlook Express and Outlook are
quite different. We are using OE as the tester.

Exchange is a beast with way to many stupid settings.

I'll second that!

Maybe
 Outlook is using one type of authentication while your SMTP client
is using
 a less secure method (or no authentication at all).

Our client is not using SMTP authentication, but neither is OE.

I'm going to give SocketSpy a try to see what could be up.

Thanks to everyone for their help.

Petew.
- Original Message - 
From: Jake Traynham [EMAIL PROTECTED]
To: ICS support mailing twsocket@elists.org
Sent: Monday, September 19, 2005 4:58 PM
Subject: Re: [twsocket] [tsyncsmtpcli] Problem sending email to
Exchange2000server


 Hello,

 At 10:16 AM 9/19/2005, you wrote:
 Hi
 
   Verify that OE use SMTP and don't use IMAP4.
 
 It definately uses SMTP.

 Are you absolutely sure?  We get customers emailing us all the time
saying
 Outlook works fine, but your [SMTP based program] won't send emails
 outside of our domain!  It's always that Outlook is connecting to
the
 server using IMAP and the settings on the server are set to allow
those
 emails to relay or whatever.  I would double- and triple-check the
 settings on Exchange to make sure that emails coming in over SMTP
can send
 out to the internet.  Exchange is a beast with way to many stupid
settings.

 The only other thing I can think of still has to do with the server
side:
 see if there's some settings in Exchange that limit who can relay
emails
 based on what type of authentication they use to access the server.
Maybe
 Outlook is using one type of authentication while your SMTP client
is using
 a less secure method (or no authentication at all).

 I hope this helps,
 Jake


 --
 Jake Traynham
 Comm-Unity Networking Systems
 FSA Associate Level Members
 http://www.cnsplug-ins.com/

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 __ NOD32 1.1220 (20050919) Information __

 This message was checked by NOD32 antivirus system.
 http://www.eset.com



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Re: [twsocket] [tsyncsmtpcli] Problem sending email to Exchange2000server

2005-09-19 Thread Francois PIETTE
Yes, IMAP4 does it all.
--
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http://www.overbyte.be

- Original Message - 
From: Wilfried Mestdagh [EMAIL PROTECTED]
To: ICS support mailing twsocket@elists.org
Sent: Monday, September 19, 2005 8:05 PM
Subject: Re: [twsocket] [tsyncsmtpcli] Problem sending email to 
Exchange2000server


 Hello Francois,

 Verify that OE use SMTP and don't use IMAP4.

 Is IMAP also used to send emails ? I have the problem that M$ Echange
 complains it will not relay, but sending with outlook to same
 destination it works. So probably this is the reason...

 ---
 Rgds, Wilfried
 http://www.mestdagh.biz

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