Selecting a string without Space and without Number in the beginning

Here is my string:

^((\S)([a-z]))[a-zA-Z0-9_+-.]+@[a-zA-Z.-]+\.(edu|com|edu7|org)$\b

I need to check for 2 conditions in the beginning of a string:

1. No space
2. No number

My string satisfies the first condition but fails the second condition. Thank you for any suggestions. I did try regex101 but could not solve it.

Here are two email addresses that are both invalid:

  somebody@gmail.com  
5somebody@gmail.com  

I want neither of those returned by the program. My current code considers the second email as valid, which is incorrect.

>Solution :

Your expected matches imply that you want to only allow letters as the first char in the string, so you can use

^[a-zA-Z][a-zA-Z0-9_+.-]*@[a-zA-Z.-]+\.(?:edu7?|com|org)$

See the regex demo. Details:

• ^ – start of string
• [a-zA-Z] – an ASCII letter
• [a-zA-Z0-9_+.-]* – zero or more letters, digits, _, +, . and - (note the position of the hyphen, it must be at the end of the character class)
• @ – a @ char
• [a-zA-Z.-]+ – one or more letters, dots or hyphens
• \. – a dot
• (?:edu7?|com|org) – edu, edu7, com, org
• $ – end of string.