Outlook has 1 feature related to Ruler. If you want to draft a new email, you can use this feature (it is the same feature which is also available on MS Word and Zoho writer). By using this feature, the email drafting improves and paragraph formatting (especially when you want to use multiple bullets with paragraphs) becomes very easy and clean.
I haven't found this feature in Zoho Mail. Can you please let me know if this feature is available or not?
Regards,
Amit