Entering foreign language in subject

[Diaconate-Institute]

My organization recently introduced a recurring newsletter entitled "Docere Bene" [Latin for Teach Well].  I tried to use that as my subject for our first mailing, but CC wouldn't accept it [text turned red just to make sure I knew my choice was "bad".  I tried alternatives like 'Docere Bene Issue One', but that didn't work either.

Is there a way I can use the newsletter's Latin title as a subject?

tnx

mm

[John_M]

Hello @Diaconate-Institute ,

Did you try to type in that subject line manually and it gave you that error message or was it copy-pasted from an outside source into the field? The letters that come out to be 'Docere Bene Issue One' should have no issues to use as a subject line.  I have also attached here an article that discusses best practices for writing a subject line that ensures email deliverability and opens for you.