Recipient receives a winmail.dat attachment

When you send an e-mail with an attachment via AttachingIT and the recipient receives a file named "winmail.dat" as an attachment.

What has happened is that your Outlook has sent an e-mail with an out-of-date text format and the receiving e-mail program can not read the e-mail. As a result it is converted to a winmail.dat attachment. 
Recipients are users who do not use Windows, for example Apple or a web browser or a phone app.

This often happens with older versions of Outlook and/or when you send an e-mail using the "Text with format" setting. This is an outdated way of adding color and links etc. to the text in an e-mail. The newer versions have an "HTML” option. HTML is a format that all receiving parties can read. 

In order to make sure that the recipient receives your e-mail in the same format that it was sent, you have a number of options:

Option 1: 
Adjust the general e-mail settings: go to File - Options - Message format: 'When sending RTF messages to internet recipients' click the 'Convert to text without format' option. Always select the HTML option if it is included. 

However, this adjusts the layout of all your emails so one of the following options may be better:

Option 2: 
Change the entry for the addressee in the personal address book. 

1. In the Extra menu click on Address book.
2. In the personal address book click on display Names.
3. Select the addressee you would like to set to plain text for then click Properties under the File menu.
4. In the SMTP General tab, un-check the Always send to this recipient in Microsoft Exchange RTF format box, and then click on OK.

Option 3: 
Change the layout for specific contacts

1. Open the recipient's record in the Contacts folder.
2. Double click on the recipients e-mail address.
3. In the E-Mail Properties dialog box, click on Only as plain text under Internet format.

To clarify: this has nothing to do with the AttachingIT plug-in, because we do not send the attachments. 
It is the combination of the text layout in your Outlook with the e-mail program of the recipient. When you send an email with an attachment using AttachingIT, the attachment is saved in a central server. Next, the recipient receives a link which he can use to download the same file.

A method is being developed so that this will not be an issue when using AttachingIT.