Blog
Notes from Perfect Mail.
Short pieces on email, calendars and the working day.
CC vs BCC: what is the difference?
CC copies people in where everyone can see them. BCC copies people in secretly. When to use each, with examples.
How to turn on dark mode in Gmail
Switch Gmail to dark mode on a computer, iPhone or Android, and what to do when emails still show up white.
How long does Gmail keep emails?
Gmail keeps your email for as long as your account is active, with three exceptions that delete mail on their own.
How to add a signature in Gmail
Set up an email signature in Gmail, choose when it appears, and keep it short enough to help.
How to delete all emails in Gmail
Clear out a whole Gmail inbox, or everything older than a date, without clicking through page after page.
How to delete more than 50 emails in Gmail at once
Gmail only selects the 50 emails on the page you can see. Here is how to select every match and delete or archive thousands at once.
How to mark all emails as read in Gmail
Clear a red unread count of thousands in under a minute, on a computer or a phone.
How to schedule an email in Gmail
Write now, send later. Schedule an email in Gmail on a computer or phone, and change or cancel it before it goes.
How to see only unread emails in Gmail
Show just the emails you have not opened, or put them at the top of your inbox for good.
How to set an out of office reply in Gmail
Turn on Gmail's vacation responder on a computer or phone, plus three short messages you can copy.
How to share a Google Calendar
Share your calendar with one person, a whole team, or anyone with a link, and choose how much they can see.
How to unsend an email in Gmail
Gmail can take back an email for up to 30 seconds after you send it. Here is how to get the full 30 seconds, and what to do once it is too late.
How to unsubscribe from emails in Gmail
Stop newsletters and marketing email for good, one sender at a time or many at once.
Inbox zero: a simple method that sticks
Inbox zero is not about having no email. It is about deciding what each email needs. A five-step method you can start today.
Notion Mail shut down. Here is where to go next
Notion Mail closed on September 22, 2026. Your email is safe in Gmail. How to pick up where you left off in Perfect Mail, in about five minutes.
What does queued mean in Gmail?
Queued means your email is waiting to send. Here is why it gets stuck and how to get it moving.
What is an email thread?
A thread is an email and all of its replies, grouped together. How threads work in Gmail, and how to turn them off.
Why am I not receiving emails in Gmail?
Someone says they sent it and it never arrived. Eight things to check, in the order most likely to find it.
Follow-ups that come back on their own
Most follow-ups are missed because they live in your head. Set a reminder when you send, and the email returns on the day you chose if nobody has answered.