How to delete my friend gmail email address from memory ?

[Make2012better]

Hi All
I have got reply from my Boss , I should not send him email thru his Gmail account .
So I delete his Gmail address from my contact app.
But when I start send a new email , when I type his name :-
Hendry
It will appear two email address For me to select :-
***Moderation Notice***
Now my question is since Gmail still appear in the memory , my question is how to clear the buffer memory ?
Hope some one can advise me
Paul

Moderation Notice​: This post has been edited by iPF staff in accordance with our Forum Rules. Please do not post personal, business or any email addresses in the forum. Thanks!

 

[seneca18]

If that is his actual email address you had better take it off your post or your boss may get very mad at you. You need to log into your gmail account and delete his email from your contacts under "other contacts" I believe.

 

[zig9449]

Just open The Phone.app and tap on the Contacts tab, or just opne the Contacts app.

Find his contact, and tap "Edit" in the top right corner.

Now simply delete the account you want gone.

Done.