Exchange valid email address characters

Here are some common email address characters that can be exchanged:

@ (at sign) can be replaced with:

• @ (at sign)
• %40 (URL-encoded at sign)
• at (word "at" instead of symbol)

. (dot) can be replaced with:

• . (dot)
• %2E (URL-encoded dot)
• dot (word "dot" instead of symbol)

- (hyphen) can be replaced with:

• - (hyphen)
• _ (underscore)
• minus (word "minus" instead of symbol)

_ (underscore) can be replaced with:

• _ (underscore)
• - (hyphen)
• underscore (word "underscore" instead of symbol)

+ (plus sign) can be replaced with:

• + (plus sign)
• %2B (URL-encoded plus sign)
• plus (word "plus" instead of symbol)

Here are some examples of valid email addresses with these character exchanges:

• [email protected] can be replaced with:
  • example%40domain.com
  • example at domain.com
  • example@domain-dot-com
• [email protected] can be replaced with:
  • [email protected] (using underscore instead of hyphen)
  • [email protected] (using minus sign instead of hyphen)
  • [email protected] (using dot instead of hyphen)

Keep in mind that while these character exchanges are valid, they may not be recommended as they can make the email address harder to read and remember. It's generally best to use the standard @ and . characters in email addresses.