While apparently the plugin was working with most mail servers, the double \r\n.\r\n at the end violates the spec and newer OpenSMTP servers are rejecting this.
Mail notification
The mail notification plugin allows you to send a mail notification from a mail account by performing an action.
Note: Google mail is currently not supported since that requires OAuth2.0 which is currently a missing feature.
Supported Things
-
E-mail notifications
- Username and password login
- Send mail
NOTE: This plug-in is not able to receive E-Mails
Requirements
- The mail sever must be reachable.
- Valid user account credentials.
- The package 'nymea-plugin-mailnotification' must be installed.
More
https://www.liquidweb.com/kb/how-to-set-up-any-e-mail-client/