Validate email address for particular suffix using regex in Ruby-on-Rails -

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• using regular expression validate email address 73 answers

i want validate email address particular suffix should email. must have .edu or must have @mypost.com. example, have 4 email addresses shown below:

1) john@learn.edu - valid

2) john@mypost.com - valid

3) john@gmail.com - invalid

4) john@dblist.org - invalid

i have tried solve problem using below code in user.rb model file no avail.

if ('xc@dblist.com' =~ /\a[\w]([^@\s,;]+)@((mypost|[\w-]+\.)+(edu|com))\z/i) != nil   return true else   return false end 

you can use regex:

\a\w([^@\s,;]+)@(mypost\.com|[\w-]+\.edu)\z 

see demo (i use ^/$ demo in multilingual mode there)

the (mypost\.com|[\w-]+\.edu) part matches .edu domain , mypost.com.

note if not use captured groups, use \a\w[^@\s,;]+@(?:mypost\.com|[\w-]+\.edu)\z.