I just recently reset my 2018 MacBook Air and since then, I haven't been able to send emails from it. I either receive a "return to sender" message, or I receive this message:
I have looked on the internet for instructions on how to solve this, yet I am unable to send emails from this email address.
Strangely, none of this happens either with my iPad or iPhone; just with my Mac.
Is there a way to save this problem?
MacBook Air 13", macOS 10.15
What does Mail/Window/Connection Doctor Show? If the server is red, select it and look at the Show Details box.
Mail: If you can’t receive messages.
Mail: If you can’t send messages.
Troubleshooting sending email messages
Mail not sending or receiving messages after updating OS X.
As a backup, if you have emails in your account inbox, select the mailbox, then Mail/Mailbox/Export Mailbox, and export the mailbox to your Desktop. Then go to Mail/Preferences/Accounts, select the account, and delete it using the minus sign. Quit/reopen Mail and add the account back. Test. If necessary, to recover missing emails, use Mail/File/Import to import the mailbox on your Desktop. It normal shows in the On My Mac section. Drag emails to the account inbox if desired.
What does Mail/Window/Connection Doctor Show? If the server is red, select it and look at the Show Details box.
Mail: If you can’t receive messages.
Mail: If you can’t send messages.
Troubleshooting sending email messages
Mail not sending or receiving messages after updating OS X.
As a backup, if you have emails in your account inbox, select the mailbox, then Mail/Mailbox/Export Mailbox, and export the mailbox to your Desktop. Then go to Mail/Preferences/Accounts, select the account, and delete it using the minus sign. Quit/reopen Mail and add the account back. Test. If necessary, to recover missing emails, use Mail/File/Import to import the mailbox on your Desktop. It normal shows in the On My Mac section. Drag emails to the account inbox if desired.
You are welcome. Try quitting/reopening Mail and try again.
Are you running any anti - virus programs? Using a VPN?
Thanks for the answer! I tried going on mail/window/connection doctor and it says that all the servers are green. I tried again and still the problem persists.
Sender Address was reject by the Server.
