Are Exclamation Points Allowed in Email Addresses?
The Relevant Internet Standard Document, Rfc 2822, Lays out Which Characters Can Be Used in an Email Address. .. . You Can Use Any Ascii Alphanumeric Character...
The relevant internet standard document, RFC 2822, lays out which characters can be used in an email address. ... You can use any ASCII alphanumeric character in your email address, as well as any characters between ASCII 33 and 47. Characters that are not allowed in an email address include: Exclamation mark (!)
What special characters are not allowed in email addresses?
- Uppercase and lowercase letters in English (A-Z, a-z)
- Digits from 0 to 9.
- A hyphen (-)
- A period (.) ( used to identify a sub-domain; for example, email. domainsample)
Can email addresses have special characters?
Despite the wide range of special characters which are technically valid, organisations, mail services, mail servers and mail clients in practice often do not accept all of them. For example, Windows Live Hotmail only allows creation of email addresses using alphanumerics, dot ( . ), underscore ( _ ) and hyphen ( - ).
Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.
