Maximizing email deliverability with SOLO Server Automation

By Abram P | Support Articles

Aug 24

The SoftwareKey System has many features to automate license management for your company, including sending various email notifications to your customers that are branded to come from your company.   When developing the email templates used to send messages to your customers, you must choose which of your company's email addresses should be in the "from" field.

If you use a free email service provider such as,,, etc., you should not use that email domain in your SOLO Server configuration for any email addresses.

Summary of the Problem

Today most spam email is being sent through either hijacked email accounts or through free email service providers. For this reason, free email service providers have started leveraging new email security standards to make it more difficult to use these email address when sending messages through other IT infrastructure, including services like SOLO Server.


If emails from your SOLO Server account are not being delivered, the problem is most likely caused by DMARC policy, which essentially prevents anyone from impersonating you or your company to send malicious or phishing emails (which can lure unsuspecting users into providing sensitive information to hackers).


If you use a third-party email service such as Gmail, Outlook, Office 365, Yahoo, AOL, etc…, and you are attempting to configure SOLO Server to send emails from the services domain (e.g., this is not allowed by these services.

  • To improve email deliverability, you should always send email from your domain name - presumably whatever domain name is powering your website.
  • Note that if you are using a paid gmail account to accept email for your company's domain name, this article does not apply to you as long as you are always using a "from" email address pointing to your company's domain name.

You should always be using an email address like to send email.

Additional step - review DNS configuration

If you have your own domain already configured, you will need to check and possibly revise DNS settings to allow SOLO Server to send emails.

Our email sending provider is in the process of improving the way the additional DNS configuration is done. We will be updating this post in the future. In the meantime, please contact us for further guidance!

About the Author

Abram Pousada is one of the passionate Software Engineers with He started his career with when he was in high-school and has been with the company for over a decade. After-hours, the self-proclaimed geek enjoys a variety of engaging hobbies ranging from even more programming to video games and mountain biking.