Email Writing Guides
Updated
Plain guides to everyday email: how to start and end one, what CC, BCC and RE mean, out-of-office and sick-day templates, signatures, resignation and complaint emails, and where AI helps. Updated November 2026. Get the app for iPhone or Android.

AI Email Writer for iPhone
Looking for an AI email writer for iPhone? See how to install FlyMail, send drafts to Mail or Gmail, use voice input, and how it compares to Apple Intelligence.
AI Resignation Letter Writer
Use an AI resignation letter writer to draft a short, professional letter. See what to include, three samples, and what to keep out of AI's hands.
Are Email Addresses Case Sensitive?
Are email addresses case sensitive? Mostly no. See what the RFC says, how Gmail, Outlook and Yahoo treat capitals and dots, and what to do in practice.
Can AI Write Better Emails Than Humans?
Can AI write better emails than humans? An honest look at where AI drafts win, where people win, and who should write which email, with a quick table.
CC vs BCC: When to Use Each
CC vs BCC explained: the difference between To, CC and BCC, a quick decision table, reply-all behavior and the etiquette mistakes to avoid, with examples.
Email Etiquette Rules for the Workplace
Workplace email etiquette rules for 2026: response times, reply-all, subject lines, after-hours email and tone, plus a do/don't table you can scan fast.
Email Subject Line Best Practices
Email subject line best practices for work emails: how to be specific, use action tags and dates, and write clarification and escalation subjects that get read.
FlyMail vs ChatGPT for Writing Emails
Can you use ChatGPT as an email writer, or is a dedicated app faster? A fair FlyMail vs ChatGPT comparison with a table, sample prompts and when to pick each.
FlyMail vs Grammarly for Email
Grammarly email writer or FlyMail? A fair comparison of what each does, where each fits, and how to use both when you write email on your phone and desktop.
Follow-Up Email After No Response
Follow-up email after no response: how long to wait, wording that doesn't guilt-trip, when to switch channels, plus 6 short samples you can copy today.
Funny Email Signatures
Funny email signatures that are original and grouped by situation: work-safe, out of office, sarcastic, nerdy and student. Plus when humor backfires.
Gen Z Email Sign-Offs
Gen Z email sign-offs explained: what Best, Thanks!, lmk, Cheers and no sign-off say, how each reads to older coworkers, and which are safe at work.
How to Add Email to iPhone
How to add email to iPhone on iOS 18 and later: steps for Gmail, Outlook, iCloud and other IMAP accounts, plus fixes for when the account will not connect.
How to End an Email Professionally
How to end an email professionally: 40 closing lines and sign-offs grouped by situation, what to avoid, and how to close a favor request without sounding pushy.
How to Introduce Yourself in an Email
How to introduce yourself in an email: a simple structure plus 8 short examples for a new team, client, professor, landlord, manager and cold contacts.
How to Recall an Email in Outlook
Learn how to recall an email in Outlook on Windows, new Outlook and the web, why recall often fails, and what to do instead, including delay send rules.
How to Respond to an RSVP Email
How to respond to an RSVP email: sample replies for yes, no and maybe, plus-one and dietary questions, work events vs weddings, and when to answer.
How to Send an Anonymous Email
How do you send an anonymous email? Learn the safe, legal ways, what metadata still gives you away, and when anonymity is the wrong tool. Includes a sample.
Send One Email to Many People Individually
Learn how to send an email to multiple recipients individually: BCC, Outlook mail merge, Gmail mail merge and add-ons, plus privacy and sending limits.
How to Send a Large Video Through Email
How to send a large video through email: attachment limits for Gmail, Outlook and iCloud, cloud links, compression, sharing permissions and phone steps.
How to Start an Email
How to start an email: greetings by formality, first lines that get to the point, what to do when you don't know the name, and examples you can copy.
How to Write a Complaint Email
Learn how to write a complaint email that gets a reply: a four-part structure, five copy-ready templates, tips for staying calm, and AI help for the first draft.
How to Write an Email to a Teacher
Learn how to write an email to a teacher, with subject line and greeting rules plus short templates for absences, extensions, grades, meetings and thanks.
How to Write a Resignation Email
How to write a resignation email: what to include, who to send it to, a clear subject line, four ready templates and what to leave out.
I Hope This Email Finds You Well (and 30 Better Openers)
Is 'I hope this email finds you well' wrong? Not really, but it's filler. Get 30 better email openers by situation, plus when to skip the opener entirely.
Out of Office Email Examples
Out of office response examples you can copy: 15 auto-reply emails for vacation, sick days, parental leave, conferences and more, plus Outlook and Gmail setup.
Professional Email Signature Format
Professional email signature format: what to include, what to cut, plus copy-ready examples for corporate, freelance, academic and mobile signatures.
What Does RE Mean in an Email?
What does RE mean in an email? RE: is short for reply. See where it comes from, how FW and FWD work, when to edit a subject line, and other common abbreviations.
How to Rewrite an Email
How to rewrite an email so it gets read and answered: a four-step method, three before and after examples, and a faster way with FlyMail's Improve tab.
Save the Date Email Wording
Save the date email wording that works: templates for weddings, corporate events, parties and conferences, plus subject lines, what to include and when to send.
Sick Day Email Templates
Need a sick day email? Get short templates for your manager, team, clients, remote work and school, plus subject lines and how much to say.
Student Email Signature Examples
Student email signature examples for high school, college, grad school and job seekers, plus what to include, what to skip, and how to set one up on your phone.
What App Writes Emails for You?
What app writes emails for you? FlyMail is a dedicated email app, ChatGPT is the general option, and Gmail or Outlook have built-in tools. Here is how to pick.
What Is BCC in Email?
What is BCC in email? Learn what a BCC recipient is, what others see, what happens on reply all, when to use it and when it backfires.
How to Write a Professional Email
How to write a professional email in eight steps: subject line, greeting, opening, ask, closing and proofreading, with a labeled example and common mistakes.