Using Symbols in Subject Lines Recently, you might have seen some interesting symbols appearing in your inbox. Unicode Symbols have started to make an appearance in subject lines and Digital marketers are using them to their benefit to get noticed in a sea of text based subject lines. We tested the symbols below in different email clients on both PC and Mobile. If you would like to use any of the symbols below, you can copy and paste them into your subject line inside CONNECT. If you are looking for other symbols,  click here  for a great search engine that will find symbols based on words.   Symbol Description Unicode Outlook (2003+)  Thunderbird  iMail 4  Webmail *  iPhone (iOS 5)  Android 2.2  Android 4.0  Blackberry (OS 7.1)  â™  Spade U+2660 ♣ Clover U+2663 ♦ Diamond U+2666 ♥ Heart U+2665 ? Male Symbol U+2642 ? Female Symbol U+2640 ¤ Sun U+263C ? Black Smiley U+263B ? White Smiley U+263A â—Š Lozenge U+25CA ? Left Arrow U+25C4 ? Down Arrow U+25BC ? Right Arrow U+25BA ? Up Arrow U+25B2 ? Single Music Note U+266A ? Double Music Note U+266B ? Sharp  U+266F ? Clear Bullet U+25CB ? Black Bullet U+25CF ® Registered Symbol U+00AE â„¢ Trademark Symbol U+2122 © Copyright Symbol U+00A9