Issue Summary

The send email action does not appear to send emails to a local mail server/testing mail server. 

Steps to Reproduce

1. Set up an outgoing SMTP mail server. This can be a local server for local testing. 
2. Create a new project: "test".
3. Under automation rules for the project, set the following:
   1. Trigger: Issue commented
   2. Action: Email action: send an email to any email address accepted by the SMTP server
4. Create an issue and add a comment.

Expected Results

Email should be sent

Actual Results

The mail is not received. The mail does end up in the mail queue in Jira mail settings, but disappears and does not appear in the errors as well. A4J reports that email was successful in the audit log.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available