Protect Your Identity Online. Get step-by-step visual guides on the tools and practices that will help you protect your personal information with Google's Online Security Guidebook.

You can see the last 10 IP addresses and approximate locations that accessed your Gmail account. If you got a warning about suspicious activity in your account, you might also see up to 3 additional IP addresses that have been labeled as suspicious. There are a few reasons you may see multiple IP addresses or locations in your activity:

To help prevent others from reading your emails, Gmail automatically encrypts the email in transit using transport-layer security (TLS). In most cases, you can check the security of your emails. If you have a work or school account, additional encryption types may be supported. Learn about email encryption in Gmail.

You can have Gmail check the spelling and grammar of your emails as you write. On your computer, open ;Gmail.  Click Settings 

2021年3月1日 · This help content & information General Help Center experience. Search. Clear search

When Gmail finds a known virus attached to an email that's been sent to you, Gmail will reject the message and let the sender know. If Gmail finds a virus in an attachment on an email that's already in your inbox, you won't be able to download the attachment.

The information in Postmaster Tools helps you meet Gmail’s requirements for sending email to personal Gmail accounts, described in our Email sender guidelines and Email sender guidelines FAQ. Postmaster Tools dashboards have detailed information about spam rate, reputation, message authentication, and delivery errors.

On your computer, go to Gmail. Enter your Google Account email or phone number and password. If information is already filled in and you have to sign in to a different account, click Use another account. If you get a page that describes Gmail instead of the sign-in page, at the top right of the page, click Sign in.

Tip: To automatically update the passwords in your Google Account, you can either: Turn on sync in Chrome.; Sign in to Chrome and allow Chrome to use passwords from your Google Account when asked.

On your computer, open Gmail. Open the email that you want to analyze. Next to Reply , click More Show original. In a new window, the full header shows. Click Copy to clipboard. Open Google Admin Toolbox Messageheader. In the box, …