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...perhaps two years before upgrade. i am not sure if this is a good idea. i seek your advice about the upgrade. ROLE: Postfix Mail Server With Virtual Users Support Using MySQL Database, Apache Web Server, Certificate Authority (CA). Squirrelmail, Postfix Admin, Maia MailGuard Postfix-Admin, SPF, Postgray Filter, spamassassin, Clamav. i want to know the advice from experts, what is best? is it really important to update the system to new ports available. Or once i have no issue, i should follow golden rule. don't fix if not broken. i personally want my system to update at all time and exclude c...