Good afternoon.
Your integration with the mailbox through which you send emails is not configured correctly.
When setting up integration with mail, I recommend checking the box
"Don't send emails from this email if SMTP is not available"
https://i.imgur.com/bFLe7R8.pngIf you do not set this setting, then even if SMTP is not available,
the system will try to send a message using the mail method directly from the server.
With this method, errors are not returned and the system thinks that the letter has gone, but mail servers such letters
rejected or put in spam.
Now we see that the letters in the "History of sent emails" have not been sent.
https://i.imgur.com/TaDpYbU.pngOpen reports /admin/report/-> logging -> smtp-2021-01-21.log and see the error
[2021-01-21 15:27:03]
[login] =>
lanita.shtor@gmail.com[status] => error
[message] => Connect SMTP is Fail
in sendmail-2021-01-21.log
you can see that the method of sending smtp, to whom they tried to send, the subject.
This mailbox is also not parsed into a box
https://i.imgur.com/tKThMxW.pngSet up the mail integration correctly and everything will work.