==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.7
- Linux/BSD distribution name and version: Ubuntu 16.04
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? No, not yet
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

after having the service iredapt not running (don't know why - hope it survives a reboot), I'm trying to send email from my 'normal' GoDaddy account at MYD1.com to my new email at MYD2.com (both are my domains).

I'm getting this error:

This is an automatically generated Delivery Status Notification.

Delivery to the following recipients failed permanently:

* postmaster@lifeassetsllc.com

Reason: There was an error while attempting to deliver your message with [Subject: "Test Email 8/20 4:56 PM"] to postmaster@lifeassetsllc.com. MTA p3plwbeout09-04.prod.phx3.secureserver.net received this response from the destination host IP - 192.210.160.76 - 554 , 554 5.7.1 <postmaster@lifeassetsllc.com>: Recipient address rejected: SMTP AUTH is required, or it is a spam with forged sender domain

Any thoughts on the problem here?

Andrew