How do you change an Exchange 2013 contact to always send as plain text?

How do I change an Exchange 2013 Contact to have its message send as plain text or html?
These are contacts on the Exchange server. Can it be done with powershell.
I have several contacts complaining that they are always getting a Winmail.dat Attachments.

Thanks for any help offered.
jzainoAsked:
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e_sandrsCommented:
I was tired of this issue, so I fixed it on the Exchange server for all email.  I have Exchange 2010 at the moment, and the setting is Org. Config - Hub Transport - Remote Domains Tab - Default - Message Format Tab.

Exchange rich-text format:  Never use (radio button)

The Exchange 2013 version appears to be under the Internet Mail Connector - Properties - General Tab.

It can be set in Outlook 2013 under File - Options - Mail - Message Format section.  Set "Convert to HTML" if you want to keep "rich" formatting.

Good enough?
Will SzymkowskiSenior Solution ArchitectCommented:
You can you use the following command to only send/receive plain text from Mail Contacts.
Get-MailContact -ResultSize "unlimited" | Set-MailContact -MessageBodyFormat Text -MessageFormat Text -UseMapiRichTextFormat Never

Open in new window


This will set those settings on all mailcontacts that you have.

Will.

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jzainoAuthor Commented:
Will,

How do I tell if this has been applied to the contacts?
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Will SzymkowskiSenior Solution ArchitectCommented:
Run the below command...
Get-MailContact -ResultSize "unlimited" | select Alias, MessageBodyFormat, MessageFormat, UseMapiRichTextFormat

Open in new window


Will.
jzainoAuthor Commented:
Thank you for the help. This will solve a lot of headaches.
I need to brush up on my powershell skills.
jzainoAuthor Commented:
Thank you!
e_sandrsCommented:
Yep, good powershell commands.  I don't spend enough time in shell myself.  It's on my list.
Will SzymkowskiSenior Solution ArchitectCommented:
Glad to help guys!

Will.
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