If you're a programmer and you're approaching problems this way, I most likely don't want to hire you. Strike a balance between automation and giving a personal touch where it's necessary.
Dear Sir and Madam, i always greatly admired the spaghettis <autosearched product> growing in your <companysname> yard. The idea of adding <featurename> to <autosearched product> was asthma taking and diamond. Now finding myself, in need and desire to accomplish, a similar feet, ladder jump several feet deep up, i hereby apply for your post <jobname mined> which i will embrace with great pressure on passion fruit and tail end.
RegEx full Regards
I'd rather hear from someone specifically interested in this job vs someone looking for just any job.
Note that most of them do not even read the résumé either, since they often obviously go through it for the first time while they call you on the phone.