For maximum compatibility, only the following characters are allowed for outgoing text messages:

ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
0123456789
@ $ _ ^ { } [ ~ ] ! " # % & ' ( ) * + , - . / \ : ;  ?

*We also recommend to not copy/paste a message from a text editor like Microsoft Word, as these programs usually include ghost characters when pasting.

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