Why do my attachments get converted to WINMAIL.DAT

Sometimes you may receive an email with a winmail.dat attachment. This file is sent from people using Microsoft Outlook as their email client and they are sending emails in Microsoft Outlook Rich Text Format instead of Plain Text format.

How to Configure Outlook NOT to send Winmail.dat attachments

To Turn off Rich Text sending for messages in Microsoft Outlook:

1) Click on Tools

2) Click Options, and then click the Mail Format tab.

3) In the Send in this Message Format list, select Plain Text, and then click OK.

This will set your default sending method to Plain Text, which will lose your special formatting options with fonts, colors, etc.

However everyone, no matter what email program they are using, will now be able to receive your email with no problems.

  • 54 Users Found This Useful
Was this answer helpful?

Related Articles

Email Account Client Setup

There are a number of ways to set up mail on an email client like Thunderbird or Outlook. The...

Disable SSL on Iphone Mail App

Disable SSL on Iphone Mail App: Click on Settings Click on Mail, Contacts and Calendars...

SMTP Authentication

We have enabled SMTP authentication to prevent spammers from using the SMTP (outgoing) server as...

What ports can I use to send email via

The correct port to submit mail to a mail server for delivery is 587. These ports would need to...

Some steps to help prevent spam

Nearly everyone has to deal with spam arriving in their inbox. Some people get hundreds a day and...