In case you go on vacation and can't regularly reply to the letter, there is still a useful solution for you. Gmail allows you to create filters based on a combination of keywords, senders, or email addresses. After activating Canned Responses, you can set the Gmail filter to choose a response content that you plan to send and send it to you.
5. Mail Goggles
If even when you are in a state of alertness, your calculation skills are still not very good, please ignore this add-on. Here is how Mail Goggles works: When you try to send mail during your predetermined time, for example, from 10pm to 4am, you will be asked to solve 3 simple operations. If you give the wrong result, the letter will not be sent but saved in the Drafts folder.
When you see basic additions and subtractions that suddenly become as difficult as quantum physics, that means you need to go to sleep a bit. Although not very useful, this is still an interesting add-on.
6. Send SMS in Chat
Sending SMS is a great addition to the chat feature in your Gmail navigation bar. When you hover over the name of the person you want to send the message to, a pop-up dialog box appears. In the 'More' drop-down menu is the option to allow sending SMS. If the person is logged into Gtalk, you will have a chat option. This helps the previous conversation be kept in the same window.
7. Navbar Drag and Drop
This add-on allows you to arrange utility features in the left menu bar in the order you want using Drag and Drop.
8. Undo Send
How many times have you pressed the send button and then soon wished that the message was not sent for some reason, such as forgetting to attach a document file? This add-on gives you the opportunity to record the message within about 10 seconds after pressing the Send button.
9. Offline
If you enable this add-on, Gmail will place an optional shortcut icon on your desktop. Every time you open Gmail when you are connected to the Internet, Offline will sync emails with your computer. You will have access to essential features such as mailing, reading mail, searching, moving mail, and so on. Of course, you cannot send or receive new mail without an Internet connection. Once you have reconnected, all your changes will be synced and the messages you have sent will be sent.
10. Import / Export filter
It's great to be able to export filters that you've spent a lot of effort to create. Imagine having to reestablish everything from the beginning, each and every thing, indeed a torture. I have about 40 filters, so if something goes wrong, this add-on will save me a lot of time. After you export the XML file, you can attach the file to the message and send it to yourself for safe storage.
If you are someone who has never used any of the more than 50 Gmail add-ons, it's a pity. You should know that many Hotmail users are expecting such an additional feature repository. So, through this article, hope you find useful add-ons to customize your Gmail inbox.