Check valid email address

[harshraj8843]

Description

Write a programme to check a valid email address

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A valid email address consists of an email prefix and an email domain, both in acceptable formats.

The prefix appears to the left of the @ symbol.

The domain appears to the right of the @ symbol.

Acceptable email prefix formats

• Allowed characters: letters (a-z), numbers, underscores, periods, and dashes.
• An underscore, period, or dash must be followed by one or more letter or number.

Invalid email address	Valid email address
abc-@mail.com	abc-d@mail.com
abc..def@mail.com	abc.def@mail.com
.abc@mail.com	abc@mail.com
abc#def@mail.com	abc_def@mail.com

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