Superscript Registered Trademark in Subject Line

Hello @kristin_magyari 

Subject line see Sandy's response.

For Body HTML

Superscript

™ 

TM symbol

®

The trademark symbol (Unicode x2122, ™) is already defined as a superscripted T and M.

Are you asking if you can use that in a subject line? Yes, you can, though you may need to Q-encode it using my converter here: https://blog.teknkl.com/yes-you-can-use-emojis-in-marketo-subject-lines/ (and also read that post if you haven't already!).

OK, let's hone in on this a little more. I realize you're referring to the registered trademark character

®

which is Unicode x00AE, not x2122.

The accurate answer to your question is: No, you cannot ensure that the registered trademark is rendered as a superscripted R-in-circle in a Subject: line in all mail clients.

The reason is simple: Unicode character \x00AE "registered sign", unlike the \u2122 "trade mark sign", is not defined in the Unicode standard as superscript.

This means that it is entirely up to the creator of a typeface to decide whether their  \u00AE is superscripted vs. other characters in the typeface.

In contrast, the \u2122, at least if you are a well-behaved typeface designer, is supposed to be a superscript rendition of capital "TM". Obviously in super-decorative or artistic fonts the rule is broken deliberately. But in a standard business font, "registered sign" doesn't have a distinct position while "trade mark sign" does.

And you can't dictate which typeface a mail client will use to display the Subject line.  Subjects are just text, they are not HTML. So maybe the mail client uses Courier®, or Arial®, or Comic Sans®, or Impact®, or Lucida Sans®, or Tahoma®... as you can see, those typefaces make their own choices.

@kristin_magyari please check responses to your thread.

Hi @kristin_magyari , please use the below code in subject line section of the email, it will appear as code in the subject line but when you will take out the sample email you will get the trade mark(TM) in email subject line

=?utf-8?Q?=E2=84=A2=EF=B8=8F_trademark_in_email?=

For registered trade mark use below code

=?utf-8?Q?=C2=AE=EF=B8=8F_trademark_in_email?=