Given the avalanche of email we receive each year — 121 messages per day, on average — it’s no wonder that we have become somewhat desensitized to its impact on our professional brand. We’ll spend hours polishing our LinkedIn profiles and revising our résumés, but hastily hit send on an unintelligible missive simply because we’re in a rush. “Sent from my device, please overlook typos” is not a get-out-of-jail-free card for shoddy communications.