Boomerang gives you better control over your email in several ways:
It allows you to schedule emails to be sent at a later date, rather than exactly when you write them. So if you know you want to remind someone about an important event, you can write the email ahead of time, then set it up to send closer to the event.
Set up recurring emails to send on a daily, weekly, or monthly basis, so you don’t have to keep writing the same one.
At any time, you can review your scheduled emails in one place, which enables you to reschedule or cancel them at any time.
Instead of letting messages stack up chronologically, Boomerang allows you to reschedule incoming emails to come back to you at a more appropriate time. For example, the bill reminder in the picture here was sent so far in advance that it could easily be lost under other emails.
Control when new emails appear in your inbox no matter when they were sent with Inbox Pause.
Website: boomerangapp.com
Difficulty: Easy
Platform: Offered for Gmail, Outlook, Android, iPhone, and Google Calendar