i sent numbers of emails for all my gmail contacts and my friends
this is google message that i recieved for some of them that old or not exist yet:
The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces.
after sending, most of them delivered and some of them not delivered. i received not-delivered email notifications like that , from google
i know:
For a number of reasons, recipients’ email servers can reject emails that you send. Gmail returns a message reflecting the response provided by the recipient’s server.
how can i remove all of that not delivered contacts or old emails contacts from my contact list