Email Dictionary variable returning incorrect data

I am trying to loop through my inbox and get the email details with specific subject line. I noticed that for some of the emails, the value returned by the “emailFrom” key is a random string. (Example - /O=ABC/OU=EXTERNAL (ABCD12345ABC)/CN=RECIPIENTS/CN=12345ABCD123). I am not sure what is causing this. 

Loop condition -

1. Loop each mail in mailbox
2. Type of email to get - “All”
3. From specific folder - “Inbox”
4. When subject contains - “random string”
5. Message format - HTML/Plain text