OL2000: (IMO) ISP Session Broken When Sending Mail with Attachments

ID: Q196751

The information in this article applies to:

Microsoft Outlook 2000

NOTE: These procedures only apply if you have installed Outlook with the Internet Mail Only option. To determine your installation type, on the Help Menu, click About Microsoft Outlook. In About Microsoft Outlook, you should see "Internet Mail Only" if you have the Internet Mail Only option installed.

SYMPTOMS

When you send e-mail with an attachment from Microsoft Outlook, you may be disconnected from your Internet Service Provider (ISP).

CAUSE

Your message and attachment may exceed the allowable message size on the ISP server.

RESOLUTION

Contact your ISP to see if another server is available that will handle your message and attachment.

-or-

Set Outlook to break apart large messages.

MORE INFORMATION

Some ISPs provide two Simple Mail Transfer Protocol (SMTP) Addresses: one for most messages, and a secondary one for handling larger attachments. Many ISPs will automatically switch between these servers based on need. If yours does not switch automatically or will not allow you to connect to the secondary server by default, you may need to split your large attachment into smaller ones.

The following third-party utilities can divide and/or reintegrate a text encoded file into its binary format:

Decode Shell Extension (Funduc Software) http://www.funduc.com/otsoft.htm

e-ttachment Opener (DataViz, Inc.) http://www.dataviz.com/Products/ETO/ETO_Home.html

Wincode (Snappy Software) http://www.members.global2000.net/snappy/wincode.html

WinZip (Nico Mak Computing, Inc.) http://www.winzip.com/info.htm

XferPro32 (Sabasoft, Inc.) http://www.sabasoft.com/info/xferp32.htm

The third-party contact information included in this article is provided to help you find the technical support you need. This contact information is subject to change without notice. Microsoft in no way guarantees the accuracy of this third-party contact information.

For more information about how to contact these companies, query in the Knowledge Base for one of the following articles:

Q65416: Hardware and Software Third-Party Vendor Contact List, A-K

Q60781: Hardware and Software Third-Party Vendor Contact List, L-P

Q60782: Hardware and Software Third-Party Vendor Contact List, Q-Z

The third-party products discussed here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Set Outlook to Break Apart Large Messages

On the Tools menu, click Accounts.

Click to select your internet mail account, and then click Properties.

On the Advanced Tab, under Sending, click the option "Break apart messages larger than," and then in the size box type a value that is less than the maximum size allowed by your ISP.

Click OK and then Close.

REFERENCES

For more information about including files in your e-mail messages, search the Outlook Help Index for "attachments."

For more detailed information on troubleshooting general configuration issues, please refer to the following article in the Microsoft Knowledge Base:

Q195714 : OL2000: (IMO) Troubleshooting Outlook Configuration Problems

Additional query words:

Keywords : kbdta CfgIM
Version : WINDOWS:2000
Platform : WINDOWS
Issue type : kbprb