There are some instances where users will encounter symbols and special characters in emails sent via Salesforce or on forms. For example, symbols like $ and ? show up in the middle of words (especially in-between each word space).
Possible Causes
Change the email templates and personal settings for encoding to avoid symbols and special characters.
Kindly check the email encoding set for this user and template. The e-mail encoding setting is used to determine the character set and encoding of outbound e-mail sent by the user from the Salesforce application.
Email Template with Japanese and Russian Characters Shows as '???' When Received
Mass update user email encoding for email templates
Considerations for Using Content from External Sources in Email Templates
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