If you can craft an intelligent letter or e-mail to follow up after a job interview, it could be the tipping point that pushes you into the job candidate finalist category.

“The thank-you note remains one of the most overlooked marketing tools of the job search,” said Stephanie Daniel, vice president and group program manager at Keystone Associates, a career-management and transition services consultancy.

And then there’s the not-so-well-crafted message, which can put you, the job seeker, in the “loser” category. A number of professionals on the receiving end of follow-up e-mail, snailmail, FedEx packages, singing telegrams and other communications shared with TheLadders this rogues’ gallery of infamously inappropriate follow-ups. They caution readers: Do not to try this at home.

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