Hi @Claire Smith ,
Glad to hear this issue has been resolved!
Thanks for the sharing.
However, due to a recent update in forum policy, the question author now is not able to accept their own answers.
So I have written a brief summary of the solution this issue. Please feel free to accept it as the answer, which would benefit others who also has similar issues in forum.
Issue:
Do I need to add Outlook server details to my SPF record in Bluehost for my domain-based email address (that was created in Bluehost but I use it in Outlook)? And a DKIM record for outlook servers too?
Solution:
OP solved the issue:
It is my understanding that when outlook send my domian-based email, outlook in fact, defer to the Bluehost servers, so I don't need to add the outlook SPF to my name records in Bluehost. I did the email deliverability test and found the DKIM signature wasn't recognised so I went back to Bluehost who corrected it and now my emails seem to get to gmail inboxes - hurrah!