Odd e-mail address format in replies

[rweiser]

Hi.

Often when I reply to e-mails (in Mail.app) from various people who are in my Address Book, the address in the To: field shows up in the format "address@server.com> <address@server.com <address@server.com>".

It still ends up getting there OK, since the address in the angled brackets is correct, but it looks quite odd.

I know this may not be enough information, but does anyone have any idea why this might be happening and how I can prevent it?

Thanks,
Reuven

 

[Andeavor]

If you've named your contacts properly you should only see their names and not their e-mail addresses in the address bar, unless you're typing them out. Look and see if you have any doubles or addresses where the name is missing.