Valid email id format

A valid email ID format typically consists of the following components:

1. Local part: The part before the @ symbol, which can contain letters, numbers, and special characters (except spaces and punctuation marks). It is usually limited to 64 characters.
2. Domain: The part after the @ symbol, which is the domain name of the email provider or the organization. It is usually limited to 253 characters.

Here is a general format for a valid email ID:

[email protected]

Where:

• localpart is the part before the @ symbol, which can contain:
  • Letters (a-z, A-Z)
  • Numbers (0-9)
  • Special characters (!, #, $, %, ^, &, *, _, -, +, =, ~, `)
  • Dashes (-)
  • Underscores (_)
• domain is the part after the @ symbol, which can contain:
  • Letters (a-z, A-Z)
  • Numbers (0-9)
  • Dots (.)
  • Hyphens (-)
• tld is the top-level domain (TLD), which is the last part of the domain name. It can be one of the following:
  • Generic TLDs (gTLDs):.com,.net,.org,.edu,.gov, etc.
  • Country-code TLDs (ccTLDs):.us,.uk,.au,.ca, etc.

Examples of valid email IDs:

• [email protected]
• [email protected]
• [email protected]
• [email protected]

Note that some email providers may have additional requirements or restrictions on email IDs, such as:

• Maximum length: Some providers may have a maximum length for the local part or the entire email ID.
• Special characters: Some providers may not allow certain special characters or may have specific requirements for their use.
• Domain restrictions: Some providers may only allow email IDs with specific domains or may have restrictions on the use of certain domains.

It's always a good idea to check with your email provider or organization for their specific requirements and restrictions on email IDs.