print /(?:SSL|SSL Certificate|VASCO)/ ? "Match\n" : "No match\n";

[download]

Because the pattern is not anchored at either end the string 'SSL Certificate' will never match. 

$ perl -le'
my @strings = (
    "SSL",
    "SSL Certificate",
    "VASCO",
    "something else",
    );
for ( @strings ) {
    print $1 if /(SSL|SSL Certificate|VASCO)/;
    }
'
SSL
SSL
VASCO

[download]

With no anchors you need to put the longer strings first: 

$ perl -le'
my @strings = (
    "SSL",
    "SSL Certificate",
    "VASCO",
    "something else",
    );
for ( @strings ) {
    print $1 if /(SSL Certificate|SSL|VASCO)/;
    }
'
SSL
SSL Certificate
VASCO

[download]

In reply to Re^2: Regex to match multiple words in an email subject by jwkrahn
in thread Regex to match multiple words in an email subject by brainfold

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