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No Transport Provider Message in Outlook

By TomSal ·
I'm stumped on this one anyone who helps it will be greatly appreciated. First, to eliminate the obvious guesses - Yes I checked Internet connectivity , its fine (Fractional T-1 256kb). Yes I checked the Internet email settings (it worked fine for everyone for about a year and a half, no changes were made). We use NT for our NOS, Win 95/98 for clients. Outlook 97 is our email program (some have Outlook 2000).

I'm truly stumped at this point - we outsource our Internet email services and ouremail company says all is fine on their end as far as thier equipment and settings go. They also said they could ping our end fine.

What happens is in-office email communication is fine, but at certain times someone will get an "No transport Provider for this Recipient" system error and the mail won't go. To complicate the matter further it seems to be happening with the "luck of the draw" - sometimes the mail goes and sometimes it doesn't.

Its frustrating my users and to be honest its driving me crazy myself now. I'd think it was an issue of clogging the bandwidth but then why is everyone able to view websites so easily?

Thanks for your help, if you have any to offer.

-Tom

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No Transport Provider Message in Outlook

by Shanghai Sam In reply to No Transport Provider Mes ...

Hello, there could be many reasons for the problem you've indicated above, however here are a few Microsoft knowledge base articles that might help out. It's important to note that these articles reference the client and also the server.
Outlook 97had some very explicit problems with offline folders that gives this error and also if the ISP is using Exchange server it is a known bug and it has yet been fixed.
Below are the knowledge base articles that reference your problem and the possible fixes.
Q161323
Q192533
Q166163
Q182087
Q197869
Q188979

The url for the knowledgebase is http://search.support.microsoft.com/kb/c.asp?ln=en-us
I hope this helps!

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No Transport Provider Message in Outlook

by TomSal In reply to No Transport Provider Mes ...

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No Transport Provider Message in Outlook

by ann In reply to No Transport Provider Mes ...

Hello, there could be many reasons for the problem you've indicated above, however here are a few Microsoft knowledge base articles that might help out. It's important to note that these articles reference the client and also the server.
Outlook 97 had some very explicit problems with offline folders that gives this error and also if the ISP is using Exchange server it is a known bug and it has yet been fixed.
Below are the knowledge base articles that reference your problem and the possible fixes.
Q161323
Q192533
Q166163
Q182087
Q197869
Q188979

The url for the knowledgebase is http://search.support.microsoft.com/kb/c.asp?ln=en-us
I hope this helps!

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No Transport Provider Message in Outlook

by TomSal In reply to No Transport Provider Mes ...

Poster rated this answer

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No Transport Provider Message in Outlook

by kevin.dickinson In reply to No Transport Provider Mes ...

Tom,

Go to Microsoft's Knowledge base and print out Q192525. It will explain how to register outlmime.dll. This solution has worked for me. I was at wit's end with this problem.

Kevin

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No Transport Provider Message in Outlook

by TomSal In reply to No Transport Provider Mes ...

Thanks for your assistance Kevin, however my problem deals with Outlook 97 and the solution you provide deals with Outlook 98 Corporate/Workgroup edition.

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No Transport Provider Message in Outlook

by cosmit In reply to No Transport Provider Mes ...

I have seen that particular error when my users are over their mailbox limit. Messages are returned with no transport provider available.

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No Transport Provider Message in Outlook

by TomSal In reply to No Transport Provider Mes ...

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No Transport Provider Message in Outlook

by mjohnson In reply to No Transport Provider Mes ...

Tom,

We have almost an identical situation. One thing I've noticed about our problem, that you didn't mention:

95% of the e-mails rejected have attachments (larger e-mails are more likely to be bumped)

We are using NAT through a firewall, so the e-mail server only sees one IP address ever. I suspect that the server is only allowing a certain number of concurent connections and when it's full people cannot get connected. The e-mail port is used, so Outlook responds that there is no e-mail server "No transport provider was available for delivery to this recipient."

I'm still stumped. I've just been telling people to keep resending till it goes. Not much else we can do until we bring our e-mail in-house.

Marc
mjohnson@optimum-solutions.com

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No Transport Provider Message in Outlook

by TomSal In reply to No Transport Provider Mes ...

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