In case all of a sudden you fell on Outlook for mail templates (yes that sucks!), and you have problem for right to left languages like Farsi read on.

Outlook removes styles from your tags, you need to provide Outlook specific tags for direction named dir. It will solve your RTL problems:

<span dir="rtl"></span>

NOTE: styles like "direction:rtl" wont work on outlook. Beside direction for other mail clients you need to provide dir attribute.

#outlook #email #direction