I have a subroutine that outputs words in my subject area of my mail hash and works great but I now want to add words to the subject area without touching my subroutine.

I was wondering how I can get some additional words with my subroutine in the Mail "Subject" part. The Subject outputs "first word" with no problem but I want to add additional text to the subject (without touching my subroutine) so my output is "first word another word here".
Any experts can advise how I would do this in my mail hash??

sub mal
{
    
    my $webname = "first word";
    return $webname; 
    
}

use Mail::Sendmail;
        my %mail = ( To      => 'you@hotmail.com',
                     From    => 'me@hotmail.com',
                     Subject => mal(),  #this gives me output in my ma
+il subject of "first word"
                     Message => "data here",
                       );
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I have tried all these below (in my subject part of this hash) and all of my attempts are not working:

Subject => "mal() ,another word here",
Subject => 'mal() ,"another word here',
Subject => mal() 'another word here',
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I can not get this to work after many different tries at it. Please advise how I can get the hash part to accept additional words along with my mal() subroutine so it outputs in my subject part of the email:

"first word another word here"

instead of:
"first word"