input given
$_ = aaa@z.com bbb@z.com ccc@z.com

output needed
$_ = aaa@something.com bbb@something.com ccc@something.com

if tried this 

if ( $_ =~ m/^(\s+.+\@)(.+\.)(.+\s+) ){
     $_ =~ s/^(\s+.+\@)(.+\.)(.*\s+)/$1something.$3/g;
}

[download]
i get $_ as aaa@z.com bbb@z.com ccc@something.com
i am not able to replace in the first 2 email id

In reply to replacing email id using regex by Anonymous Monk

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