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copied!<h2><strong>Test cases</strong></h2> <p><strong>1) Email Length</strong></p> <p>The format of email addresses is local-part@domain where the local-part may be up to 64 characters long and the domain name may have a maximum of 255 characters – but the maximum 256 characters length of a forward or reverse path restricts the entire email address to be no more than 254 characters</p> <p><em>So, divide test cases in two scenarios:</em></p> <p><strong>i)</strong> email id between 0 to 254 characters</p> <p><strong>ii)</strong> email id greater than 254 characters</p> <hr> <p><strong>2) Characters and Numbers</strong></p> <p>Email accepts Uppercase and lowercase English letters (a–z, A–Z) and Digits 0 to 9</p> <p>So, check email address with alphabets lower and upper-case and numbers, Check weather the loginid accepts the user name starting with caps letter or number or spl charaters</p> <p><strong>eg.</strong> niceandsimple@example.com, niceand122simple123@example.com</p> <hr> <hr> <p><strong>3) Special Charachters</strong></p> <p>Characters !#$%&'*+-/=?^_<code>{|}~ are been accepted. So, write two scenarios. 1) email id with Characters !#$%&'*+-/=?^_</code>{|}~ should be accepted ii) email id containing characters other than Characters !#$%&'*+-/=?^_`{|}~ should not be accepted</p> <p><strong>eg.</strong> ---> !#$%&'*+-/=?^_`{}|~@example.org</p> <p>---> " "@example.org</p> <hr> <hr> <p><strong>4) Special Characters with restrictions</strong></p> <p>Special characters are allowed with restrictions. They are: Space and "(),:;<>@[] The restrictions for special characters are that they must only be used when contained between quotation marks, and that 2 of them (the backslash \ and quotation mark " (ASCII: 92, 34)) must also be preceded by a backslash \ (e.g. "\\"").</p> <p><em>Two scenarios</em> 1) characters "(),:;<>@[] within double quotes ii) charachters "(),:;<>@[] without double quotes</p> <p><strong>eg.</strong> ----> "()<>[]:,;@\\"!#$%&'*+-/=?^_`{}| ~.a"@example.org</p> <hr> <p><strong>5) Email with Dots (.)</strong></p> <p>i) email id with single dot should be accepted</p> <p>a.little.lengthy.but.fine@dept.example.com</p> <p>ii) email with multiple continues dot not accepted</p> <p>a.little.....fine@dept.example.com</p> <p>iii) Leading dot in address is not allowed</p> <p>.abc123@gmail.com</p> <p>iv) Trailing dot in address is not allowed</p> <p>abc123.@gmail.com</p> <p>v) Multiple dot in the domain portion is invalid</p> <p>abc123@gmail..com</p> <hr> <p><strong>6) domain name</strong> </p> <p>i) same domain name ----> check the mail can be of same domain name i.e gmail@gmail.com ii) Domain is valid IP address iii) Square bracket around IP address is considered valid iv) Dash in domain name is valid v) Missing @ sign and domain vi) Garbage ( #@%^%#$@#$@#.com ) vii) Two @ sign viii) Leading dash in front of domain is invalid ix) .web is not a valid top level domain x) Invalid IP format</p> <hr> <p><strong>7) Text in email</strong></p> <p>1) Text followed email is not allowed</p> <p>email@domain.com (Joe Smith)</p> <p>2) Text before email allowed</p> <p>(Joe Smith)email@domain.com </p>

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