How to Write Emails Twice as Fast

The average professional sends 40 emails per day and spends 28% of their workweek on email, according to a McKinsey study. That is over 11 hours per week. Cutting email time in half saves 5 to 6 hours weekly, equivalent to adding a 6th productive day to your week. Here are the specific techniques that professional communicators use.

The 5-Sentence Rule

Limit every email to 5 sentences or fewer. State the purpose, provide necessary context, make the request, suggest a deadline, and sign off. Most emails can be compressed to this format without losing clarity. In fact, shorter emails get faster responses because recipients can process them in seconds.

Guy Kawasaki advocated this rule explicitly: “The optimal length of an email is five sentences. Fewer and you risk being rude. More and you risk being ignored.” Research from Boomerang (email analytics platform) confirms that emails between 50 and 125 words have the highest response rates.

Template Everything Recurring

If you send the same type of email more than twice, create a template. Most email clients support templates natively (Gmail: Settings, Advanced, Templates; Outlook: Quick Parts). Common templates include meeting scheduling, project status updates, introduction emails, follow-up reminders, and thank-you messages.

A library of 10 to 15 templates covers 60% to 70% of routine email for most professionals. Instead of composing from scratch each time, select the template, personalize 1 to 2 sentences, and send. This reduces a 5-minute composition to a 30-second customization.

Subject Lines That Prevent Follow-Up

A vague subject line (“Quick question,” “Following up,” “Hi”) requires the recipient to open the email to understand its purpose. A specific subject line conveys the core message immediately. “Approval needed: Q3 budget by Friday” is actionable from the inbox without opening. “Can we reschedule Thursday’s meeting to 3 PM?” can be answered from the subject line alone.

Include deadlines, action items, and key information in the subject line. Many email responses can be handled from the inbox preview without the recipient (or you) ever opening the full message.

Process Email in Batches

Check email 3 times per day (morning, after lunch, end of day) rather than continuously. Close the email tab between processing sessions. During each session, process to inbox zero using the 4 Ds: Do it (if under 2 minutes), Delegate it, Defer it (move to a task list with a due date), or Delete/archive it.

Continuous email monitoring creates an average of 96 daily interruptions (the typical check-email impulse frequency). Batch processing reduces this to 3 planned sessions with zero interruptions between them.

Use Text-Expander Shortcuts

Text expansion tools (TextExpander, PhraseExpress, or the built-in text replacement on macOS and iOS) let you type a short abbreviation that expands into a full phrase or paragraph. Type “mtg” and it expands to “Would you be available for a meeting on [date] at [time]?” Type “thx” and it expands to your standard closing paragraph.

Heavy email users save 20 to 40 minutes per day with 10 to 20 well-designed text shortcuts.

Quick-Reply Templates

Create saved replies for the 5 most common email types: meeting confirmations, status updates, request acknowledgments, introduction forwards, and scheduling. Gmail Templates and Outlook Quick Parts let you insert pre-written responses with two clicks. A library of 10 templates eliminates the blank-page problem for 60 to 70 percent of daily volume.

Bottom Line

Limit emails to 5 sentences, create templates for recurring message types, put key information in subject lines, process email in 3 daily batches, and use text-expansion shortcuts. These five changes cut email time by 40% to 60% for most professionals, recovering 4 to 6 hours per week.