Sorry so long
If you’re going to apologize to your audience by saying something like, “Sorry this message is so long,” then before clicking “send” or before you deliver your address, check the text.
Have you included extraneous information?
Are you repeating what people already know?
Is there a simpler way to say what’s needed?
Is any of the messaging more about you and your ego, rather than what best serves the audience?
If any of these are true, then don’t apologize … or do the valuable work of editing.
Suggestion: choose the latter.