FEIN Rules:
- Must be 9 numbers.
- Must have a dash after 2nd number.
- Cannot have any spaces.
Email Rules:
- Cannot have any spaces.
- Recipient name can only have maximum of 64 characters.
- Recipient name cannot start with a special character.
- Recipient name cannot end with a special character.
- Recipient name must have all printable characters.
- Recipient name cannot have two special characters together.
- Domains must have an inner domain and a main domain, separated by a dot.
- Inner domains can only have a maximum of 253 characters.
- Inner domains can only have a dash or dot for special characters.
Security Answer Rules:
- Must be between 3 and 30 characters.
- Cannot have any special characters.
