ProtonMail SMTP Setup and Configuration Guide

ProtonMail SMTP setup can seem daunting, but it's actually quite straightforward once you know the basics. To start, you'll need to enable the SMTP service in your ProtonMail account settings.

ProtonMail offers a free plan with limited features, but if you're looking for more advanced features, you can upgrade to a paid plan. The paid plan includes features like custom domains and increased storage space.

To set up your ProtonMail SMTP account, you'll need to navigate to your account settings and click on the "SMTP" tab. From there, you can enable the SMTP service and configure your settings.

The SMTP port for ProtonMail is 587, which is a common port for email services. You'll also need to enter your ProtonMail username and password to authenticate your account.

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ProtonMail is a free, open-source email service that prioritizes user privacy and security. It's based in Switzerland, a country with strong data protection laws.

ProtonMail uses end-to-end encryption to protect user emails, ensuring that only the sender and recipient can read the content. This means that even ProtonMail itself can't access the emails.

ProtonMail's encryption is based on the OpenPGP standard, a widely used encryption protocol. This ensures that users can easily send and receive encrypted emails with other users who also use OpenPGP.

ProtonMail is a free, open-source email service that provides end-to-end encryption for all emails. This means that only the sender and the recipient can read the email content, and not even ProtonMail can access it.

The service was founded in 2014 by a team of CERN physicists who wanted to create a secure email service for the public. They were motivated by their own experiences with online security and the need for a more private email solution.

ProtonMail uses a zero-access policy, which means that the company doesn't store any user data or emails on its servers. This policy is a key aspect of the service's commitment to user privacy and security.

The service has become popular among journalists, activists, and individuals who value online privacy. ProtonMail has also been used by various organizations and governments around the world.

If this caught your attention, see: Protonmail Security

Proton Mail SMTP is the protocol used by Proton for its web client and mobile apps. It's a widely used protocol for delivering messages over the Internet to the email server.

Proton Mail SMTP allows you to send messages from email clients and services like Gmail, Microsoft Outlook, Yahoo Mail, and more. You can also use it to send user-triggered emails, such as password resets and purchase confirmations.

To use Proton Mail SMTP, you'll need to have a subscription, which includes Mail Plus, Proton Unlimited, or Proton for Business.

Proton Mail uses 127.0.0.1 as its hostname and port number 1025, which is unusual compared to the industry-standard 587. However, Proton allows you to easily change the SMTP port number.

If you want to use Proton Mail SMTP, you'll also need to leverage the Proton Mail Bridge, the service's dedicated application.

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To set up Proton Mail SMTP, you'll need to generate an SMTP token. Sign in to your Proton Mail account and select Settings → All settings → Proton Mail → IMAP/SMTP → SMTP tokens. Click Generate token, then enter a token name and select an active custom domain address to pair with your token.

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You'll need to enter the following details in your third-party client: SMTP host (smtp.protonmail.ch), Port (587), Authentication methods (PLAIN or LOGIN), and Encryption (STARTTLS). Note that some clients may only offer "SSL/TLS" or "TLS" encryption, so you may need to experiment with different settings.

Your SMTP username and token (password) will be generated. You can use these to authenticate with your third-party client. Don't worry if you can't see the token again after closing the popup - you can always generate more tokens if needed.

To configure Proton Mail SMTP server settings, you'll need to install Proton Mail Bridge. This will provide you with necessary credentials and a dedicated password for SMTP. Download the Proton Mail Bridge installer for your operating system and follow the prompts to install it.

Once you've installed Proton Mail Bridge, you can access the necessary credentials and password in the Mailbox configuration window. Use these to set up your Proton Mail account in your third-party client.

Here are the specific settings you'll need to enter in your third-party client:

Note that some clients may have slightly different settings, so be sure to check your client's documentation for specific instructions.

To configure the server settings for Proton Mail SMTP, you need to enter the correct information in your third-party client. This includes the SMTP host, port, authentication methods, and encryption. The SMTP host is smtp.protonmail.ch, and the port is 587.

You may also be asked for the encryption method, which should be STARTTLS. If your client only offers SSL/TLS or TLS, you can try experimenting with different settings. However, STARTTLS is usually the best option.

In some cases, you may need to generate an SMTP token to use with your Proton Mail account. This token serves as your password and can be generated in the Proton Mail settings under IMAP/SMTP. You can create a new token by selecting a name, email address, and clicking "Generate token."

Here's a list of the required information for configuring server settings:

If you're using Apple Mail, you'll need to configure the Proton Mail SMTP settings in the Server Settings tab. This includes entering your Proton Mail account, username, password, hostname, and port. The correct settings are:

Remember to reboot your MacBook after changing the SMTP settings in Proton Mail Bridge.

The error "Unable to verify account name or password" is a common issue when trying to set up ProtonMail in Apple Mail. This error occurs because the ProtonMail bridge creates a local SMTP server with default settings.

The default settings for the ProtonMail bridge include a hostname of 127.0.0.1, an SMTP port of 1025, a username that's generated during account setup, and a password that's also generated during account setup.

Manually entering these default settings in Apple Mail won't work, and you'll see the error "Unable to verify account name or password."

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Configuring Proton Mail SMTP settings can be a bit tricky, especially when using Apple Mail. The good news is that it's a relatively straightforward process once you know the steps.

If you're seeing errors when trying to send emails from a 3rd party client or your app, it's likely due to a typo in your credentials or forgetting to use the password provided by Bridge.

To avoid this, make sure to carefully enter your credentials and use the password provided by Bridge.

If you're using Apple Mail, you'll need to install the certificate from the Proton Mail Bridge client. This involves logging in with your Proton credentials, choosing Apple Mail from the options, and clicking on Install the certificate.

Once you've installed the certificate, you can find the Proton Mail SMTP config under Server Settings in Apple Mail's Accounts section.

Here are the key steps to configure Apple Mail: