Using Proton Mail

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    Attachment reminders

    Proton Mail's attachment reminders prevent you from accidentally sending emails to your recipient without including the mentioned attachments.

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    How to check encryption status using lock icons

    All messages in Proton Mail show a lock icon that tells you their encryption status. In this article, we explain what these locks mean.

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    How to set the default font and font size in the composer window

    In addition to formatting text in the composer window using the formatting ribbon, you can specify a default font and font size.

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    How to use Undo Send

    If you want to recall an email after you click Send in Proton Mail, you can use the Undo Send feature to retrieve your message.

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    Read receipts

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    How to use PGP with Proton Mail

    Learn how to use PGP so you can encrypt your email communications when communicating with contacts who don't use Proton Mail.

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    How to set up an automatic reply

    Here's how to set up an Out of Office or Vacation automatic response to all or some of your emails in Proton Mail using our auto reply feature.

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    Why are my files larger on Proton Mail than on my device?

    Learn why your attachments on Proton Mail appear larger in your email than on your device.

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    Can non-Proton Mail users respond to encrypted messages?

    If you're on Proton Mail, learn how non-Proton Mail users can receive password-protected messages from you and reply securely.

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    Encrypting attachments

    Read about how Proton Mail handles the attachments, and what happens when you send and receive attachments form Proton Mail and non-Proton Mail contacts

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    Attachment and email size limits

    You can attach multiple files to an email in Proton Mail by clicking the Attachment button or dragging and dropping a file into the email composer.

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    Proton Mail message expiration

    With Proton Mail, you can set encrypted messages to expire after a set amount of time for Proton Mail and non-Proton Mail recipients.

    1. Proton Mail
    2. Using Proton Mail
    3. Compose and send emails

    How to send an encrypted email

    Learn more about email encryption and the easiest way to send a secure email using Proton Mail.

    1. Proton Mail
    2. Using Proton Mail
    3. Email notifications

    Desktop notifications

    Proton Mail now allows you to receive desktop notifications while you are logged in to your Proton Mail account. Learn how to enable your desktop notifications.

    1. Proton Mail
    2. Using Proton Mail
    3. Email notifications

    Notification emails

    Proton Mail can send notification emails to any email address you choose to alert you that messages have arrived in your Proton Mail inbox.

    1. Proton Mail
    2. Using Proton Mail
    3. Email notifications

    Notifications

    Waiting for an important email? Notifications allow you to ensure you stay on top of your Proton Mail inbox without constant monitoring of your account.

    1. Proton Mail
    2. Using Proton Mail
    3. Proton Mail settings

    How to set Proton Mail as the default email handler in your browser

    Learn how to set Proton Mail as your default email handler in popular desktop browsers.

    1. Proton Mail
    2. Using Proton Mail
    3. Proton Mail settings

    How to create a Proton Mail shortcut on your desktop

    Learn how to create desktop shortcut of the Proton Mail web application and access your account with one click.

    1. Proton Mail
    2. Using Proton Mail
    3. Proton Mail settings

    How to enable dark mode in Proton Mail

    In Proton Mail Version 4.0 (beta) you can change your theme from default mode to dark mode. This article explains how.

    1. Proton Mail
    2. Using Proton Mail
    3. Proton Mail settings

    Composing emails in normal mode or plain text mode

    Proton Mail allows you to write your emails in Normal mode or Plain text mode and write in languages written from right to left. Learn how.

    1. Proton Mail
    2. Using Proton Mail
    3. Proton Mail settings

    Printing an email

    You can print messages from your Proton Mail account. Open the message you want to print, click on the More button located on the right side, and select Print. A new tab displaying the whole message and a pop-up window with the print settings will open.

    1. Proton Mail
    2. Using Proton Mail
    3. Proton Mail settings

    How to view moved messages in your Sent and Draft folders

    This article shows you how to view messages in your Sent and Draft folders in your Proton Mail account.

    1. Proton Mail
    2. Using Proton Mail
    3. Proton Mail settings

    Keyboard shortcuts for Proton Mail

    Keyboard shortcuts can be used in the Proton Mail mailbox. Learn how to use hotkeys with Proton Mail.

    1. Proton Mail
    2. Using Proton Mail
    3. Proton Mail settings

    Update your default sending address on mobile

    Send from different Proton Mail addresses within the Android and iOS applications

    1. Proton Mail
    2. Using Proton Mail
    3. Proton Mail settings

    Email composer

    Learn about Proton Mail’s composer layout, and how you can change it, and how to choose which is the default one for your account.

    1. Proton Mail
    2. Using Proton Mail
    3. Proton Mail settings

    How to change the layout of your inbox

    Proton Mail allows you to change the appearance of your inbox and email composer. Learn how to customize your inbox.

    1. Proton Mail
    2. Using Proton Mail
    3. Proton Mail settings

    How to change themes

    The latest Proton Mail update allows you to turn on dark mode, or choose from multiple other themes for your inbox.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    How to open Password-protected Emails from Proton Mail

    Learn how to open and reply to a Proton Mail Password-protected Email — secure email you can send to non-Proton Mail email addresses.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    Enhanced tracking protection

    Proton Mail can block email trackers so you can view the full content of your emails without being tracked for targeted advertising.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    How to check encryption status using lock icons

    All messages in Proton Mail show a lock icon that tells you their encryption status. In this article, we explain what these locks mean.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    How to block email stalkers

    Learn how to completely block unwanted email from cyberstalkers using Proton Mail’s advanced sieve filters.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    Homograph attacks

    Homograph attacks are a kind of phishing attack in which trusted links are replaced with similar-looking malicious ones. Proton Mail helps users defend against homograph attacks via the link confirmation feature.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    Link confirmation

    Proton Mail offers a link confirmation feature on all devices. The feature is enabled by default, but you can turn it off and on in Settings.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    Sieve filter (advanced custom filters)

    Proton Mail offers the ability to automatically filter emails by assigning tags or sorting them into folders using the Sieve programming language. This article will introduce you to Sieve and explain how to write your own Sieve filters.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    How to report phishing scams to Proton Mail’s security team

    Phishing scams are one of the most common ways for hackers to gain access to your online accounts. Report phishing scams to Proton Mail.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    What does Proton Mail’s warning about domain authentication failure mean?

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    Email bomb mitigation

    A mail bomb is the sending of a massive amount of e-mail to a specific address or system. An increasingly common form of a mail bomb attack consists of bombarding the user mailbox with signup confirmation emails. Proton Mail offers an option to limit this with sieve filters.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    How to unsubscribe from newsletters

    Learn how to easily unsubscribe from mailing lists by using Proton Mail's unsubscribe button in the email header.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    Embedded Images

    Proton Mail supports encrypted embedded images, allowing you to insert images directly into the body of a message alongside the text.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    Spam filtering, Allow List, and Block List

    Learn how Proton Mail spam filters work, including how to add and remove email addresses and domains from your Allow List and Block List.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    How to avoid receiving spam

    Spam is one of the worst aspects of email. Learn tips and tricks on how to identify, avoid, and deal with incoming spam.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    How to load images by default

    Proton Mail doesn't load images in your emails by default to protect you from “spy pixels”. Learn how to enable automatic loading of images.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    How to check email headers in Proton Mail

    Email headers contain information about your messages. Here’s a step-by-step guide to read and download your email headers in Proton Mail.

    1. Proton Mail
    2. Using Proton Mail
    3. Receive and read emails

    How to enable or disable conversation view

    Conversation view groups messages from the same conversation in your inbox so they're easy to follow. Learn how to enable or disable it.

    1. Proton Mail
    2. Using Proton Mail
    3. Search and organize emails

    Search message content

    You can search the content of your encrypted emails without ever giving Proton Mail access to your messages.

    1. Proton Mail
    2. Using Proton Mail
    3. Search and organize emails

    Advanced Search Syntax

    1. Proton Mail
    2. Using Proton Mail
    3. Search and organize emails

    How to use filters

    With Proton Mail, you can use custom filters to automate recurring actions and organize your inbox. This article teaches you how.

    1. Proton Mail
    2. Using Proton Mail
    3. Search and organize emails

    How to search your Proton Mail messages

    Search and filter the contents of your Proton Mail emails with our advanced encrypted search features.

    1. Proton Mail
    2. Using Proton Mail
    3. Search and organize emails

    Using folders and labels

    How to create and apply Labels in Proton Mail for web and in Proton Mail

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