In reply to Alan Nevada.

Hi Alan,
As the article explained Postman SMTP removed because of a security issue.
Security releated stuff can't be explained to not hurt the users that still using it.

I have used the last version and updated it.
I used new name because the original name is still used in the WordPress directory nothing else.
You can be sure it's completely safe to download my version.
All of your settings will be saved.