Apple Mail formatting is inconsistent and impossible to fix (font sizes, bullets, styles) — has anyone found a real solution?

Hi everyone, I’m having major issues with Apple Mail’s text formatting on macOS, and I can’t tell if this is a bug or just how Mail works — but it’s making it very hard to write clean, professional emails.

These are the problems:

MIXED FONT SIZES: Even if everything is set to Arial 13, Mail splits my message into “Arial 13” and “System Default 13”. They look different.

Things I have already tried:

• selecting all and forcing the font
• using Command-T
• clearing formatting (Option-Command-T)
• converting to plain text and back
• pasting without style
• rewriting the text manually

None of these actually unify the formatting.

BROKEN BULLET LISTS: I get empty bullets I cannot remove, bullets that reappear, lists that won’t end, or bullets that come back when I press Enter.

Things I have already tried:

• Format > List > None
• Backspace/Delete in every possible combination
• clearing formatting
• rewriting the list
• Still broken.

STYLES THAT WON’T RESET: Even when pasting without formatting, Mail keeps hidden HTML spans, which create inconsistent line spacing, indentations, and mixed fonts.

RECIPIENTS SEE DIFFERENT SIZES: Even if everything shows as 13 pt for me, recipients in Gmail/Outlook/iOS see the text much smaller. I’ve tried System Default, Arial 13/14, Helvetica, resetting the zoom — nothing fixes it.

My questions:

• Are these known issues in MacOS and/or iOS mail?
• Is there any reliable way to force ONE consistent style?
• Is there any way to remove bullets cleanly?
• How do I stop Mail from mixing “Arial 13” and “System Default 13”?
• Or is Apple Mail simply not reliable for formatted emails?

I’ve already tried every basic solution, including all formatting resets. I’m looking for deeper workarounds or explanations.

Thanks in advance