MacOS – Problems with contacts in Mail

contactsemailmacosmail.app

I have a problem with Mail and I don't know how it happened. I somehow accidentally added several names for one email address. Now these names are displayed randomly. This problem is driving me crazy. Each time I send an email I'm obligated to check three times to whom am I sending that email by clicking the name and confirming the email. How can I edit or delete the names behind and email address?

EDIT:

Here is the screenshot when I open new mail message:
enter image description here

Then I start typing (pressing "d") the e-mail, list of hints pops-up:

enter image description here

notice that the value that pops up is

"devXXXXXX@gmail.com (Admin m.pYYYYYYY@gmail.com)"
and when I press "Enter" it gives the following picture

enter image description here:

In other words, when I look at that address after pressing enter it shows me that I'm sending email to "Admin" with an email "m.pYYYYYYY@gmail.com" though in fact the email is sent to other address devXXXXXX@gmail.com. It means that my email address has a name that contains other person's name and email. The biggest problem is that devXXXXXX@gmail.com email contains several names which swap each time and confusing me…

Best Answer

Check the previous recipients list in Mail. Choose the Window > Previous Recipients menu item, and scroll or search to locate the unwanted name/address combinations. From this list you can add entries to Address Book, or remove from previous recipients. This list is populated and updated every time you send an email.