From:         XXXXXX [my email address]
 To:           Laura  < xxxxxx@gmail.com>
 Subject:      Andrea's email
 Sent:         Tue, 15 Dec 2020 14:50:38 -0600
 Securence ID: 1608065439382-017-00474880

This afternoon I suddenly can't send to gmail addresses. I haven't changed anything. Even if I reply to an email that I received from a gmail address they are now bouncing back. They come back with the following (xxxxx inserted for private information): Your message From: XXXXXX [my email address] To: Laura < xxxxxx@gmail.com> Subject: Andrea's email Sent: Tue, 15 Dec 2020 14:50:38 -0600 Securence ID: 1608065439382-017-00474880 did not reach the following recipient(s): xxxxxxx@gmail.com There was a SMTP communication problem with the recipient's email server. Please verify the e-mail address to which you sent the message is correct. Otherwise, contact your system administrator. Response from destination mail server: 550-5.1.1 The email account that you tried to reach does not exist. Please try 550-5.1.1 double-checking the recipient's email address for typos or 550-5.1.1 unnecessary spaces. Learn more at 550 5.1.1 https://support.google.com/mail/?p=NoSuchUser k4si1947ybc.387 - gsmtp Further detail: 550 5.1.1 The email account that you tried to reach does not exist. Please try 5.1.1 double-checking the recipient's email address for typos or 5.1.1 unnecessary spaces. Learn more at 5.1.1 https://support.google.com/mail/?p=NoSuchUser k4si1947ybc.387 - gsmtp