Ye Olde 'Single Quote Marks' Issue

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Outlook version
Outlook 2010 64 bit
Email Account
There are various threads on this issue on the web, mostly older, although I don't think I've ever seen a resolution or a true explanation. Any input would be appreciated. The issue comes up in a variety of contexts, but here's one that I find particularly annoying and inexplicable ...


- A contact is in Outlook 2010 Contacts. E.g., John Doe. Email address: "Display as": John Doe.

- Create a new email, type John Doe in the "To" field.

- Outlook autocompletes the "To" field as John Doe (underlined, indicating that Outlook has his email address).

- Send the email.

- John Doe then sends a reply. When it arrives in the Inbox, the "From" field for his email shows John Doe. So far so good.

- Click reply on John Doe's message to send him a further response. Now, inexplicably, the "To" box doesn't show John Doe, but instead it shows the following (including the single quote marks):


- And when this email has been sent, it will be listed in the Sent folder under '' , rather than John Doe.

Another variation on this same issue is that sometimes Outlook will enclose a name, or the name and the email address, in single quotes.

Even MS's own Outlook Express never had these counterproductive quirks!

Any thoughts? Or am I just beating a long-dead horse?

Many thanks.

Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange
You're beating a dead horse that ain't going anywhere. :)

I'm surprised that Outlook had just the email address in the autocomplete - it usually uses Name (address) format in the autocomplete when it replies to mail. But yeah, Outlook doesn't seem to have a rhyme or reason in how it adds names to the list. Unfortunately, there isn't do about it - there is no setting that controls it.


Outlook version
Outlook 2010 64 bit
Email Account
Thanks Diane. Do you happen to know whether Windows Live Mail exhibits the same behavior?

Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange
No, sorry, I don't. I would assume it doesn't - it seems to be a problem for ExtendedMAPI code, and only outlook uses that.
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