Why didn’t some people receive the evaluation invitation (eg the invitation was caught in the recipient’s SPAM folder)?

When using TrainingCheck's mail servers (via the Address Book) to distribute your evaluation invitation message, there is a chance that the recipient’s network may automatically send the message to a SPAM/junk folder, or your network may block it completely causing it to 'bounce'.

1) Networks may have spam filters that look for specific words in the message or particular message formatting. For this reason you should avoid the following in your evaluation invitation:

  • Using spammy phrases, like "Click here!" or "Once in a lifetime opportunity!"
  • Going crazy with exclamation points!!!!!!
  • USING ALL CAPS (especially in the subject)
  • Colouring fonts bright red, or green
  • Coding untidy HTML (usually from converting a Microsoft Word file to HTML)
  • Creating an HTML email that is just one big image, with little or no text (since spam filters can't read images, they assume it's spam that's trying to trick them).
  • Using the word "Test" in the subject line
  • Sending a test to multiple recipients within the same company (the company's email firewall may assume it's a spam attack)

2) With internal evaluations some SPAM filters may block emails because the ‘From address’ (the outgoing message from TrainingCheck’s mail server) has the same ending (eg ‘@mycompany.com’ ) as, the recipient’s address. This is because the receiving network can detect a mismatch between the TrainingCheck mailserver IP address and the IP address of the company domain.

In this case try changing the "From address" in the email to something that does not match the ending of the recipient’s address.

Also, ask your IT department to set permissions for the TrainingCheck mail IP addresses below. This will keep messages from being blocked by your servers in the future:

TrainingCheck Mail IP Addresses:


In addition we use a specialist email provider - SendGrid - for some of our services, so you may need to set permissions for the following

  • *@sendgrid.net

If you have gone through the tips suggested above and if you believe a specific domain/vendor has completely blocked emails from the TrainingCheck mail servers, we suggest using either the Email Link or the Webpage/Popup Link response collection options. In the meantime, please send us the domain name of the company that has blocked TrainingCheck and we will need to contact them to investigate further.



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