Why I'm not receiving submission emails?

My system is not sending out emails.  

We're sorry for the inconvenience.

I checked the email logs and I saw that you are using SMTP sender email:

If you're still experiencing this issue, please check your SMTP settings and if the configuration is correct.

We'll wait for your response.

Thank you!

Smtp.office365.com
Port 587
Is the server settings.
Thank you,
Nathan A. Higgs, Sr.
President
I don't work from 8-5, I work from Start to Finish!
[HIggsPRO-logo 2x3]
Building your business
one square at a time!
Schedule a time to chat that works for you
Office 303-223-9808 EXT 710
E-Mail Nathan@higgs.pro
Web www.higgs.pro
HPC Mobile App
[1 Long]
The foregoing is not intended to be a legally binding electronic signature. The information contained in, and attached to, this communication is intended only for the personal and confidential use of the designated recipient(s) referenced above. This communication and attachments are confidential and privileged from disclosure. If the recipient of this communication is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this communication in error and that any review, dissemination, distribution or copying of this communication and its attachments is strictly prohibited. If you have received this communication and attachments in error, please notify the above identified sender immediately at the telephone number above and destroy the original communication and any attachments.
...

Yes, that looks correct.

The issue could be related to the authentication, please check this thread from Microsoft: https://support.office.com/en-us/article/How-to-set-up-a-multifunction-device-or-application-to-send-email-using-Office-365-69f58e99-c550-4274-ad18-c805d654b4c4

And see if it helps.

Please let us know.

Thank you!