There are pros and cons to using special characters in email subject lines. Generally, marketers report higher open rates.
Some report better engagement, but many don’t.
There are also reports of special characters causing problems with deliverability, mostly because spammers became very fond of special characters for a while.
Answer:
Plain text, Rich Text, and HTML format
Explanation:
In Outlook 2016, three formats are allowed. You can send the plain text only or you can send using the Rich text format. However, there is another sending format as well that is allowed, and it is the HTML format. And by default, if you will let the Outlook choose the most appropriate sending format then the email message will be sent using the HTML format.
WordPad is defenitely more advanced.
There is no Mac equivalent.
Aerospace, petroleum, and automotive industries