email servere are rejecting proton email

In our role as Outsourced Tech Support for web hosting providers, email errors are one major category of issues we resolve for the customers. But this convenience can get upset when email errors crop up all of a sudden.

Blocked list: Addresses in the Blocked list will never be delivered to your inbox.One click email delivery – That’s why everyone prefers sending mails via mobile devices.

Not spam list: If you want to allow emails from certain addresses, mark them as “not spam”.

Spam list: Addresses added to your Spam list will arrive in your Spam folder.

The Spam and block list is categorized into three tabs: Spam, Not spam, and Blocked: To view all custom existing spam filters and add new ones, sign in to your account at (new window) and click Settings → Go to settings → Proton Mail → Filters → Spam and block list. Please see how to avoid receiving spam (new window) for tips on how to avoid receiving spam messages, and our dedicated article on how to block email stalkers (new window) if you are a victim of this form of abuse. However, you can sometimes be targeted at random. For example, if you subscribe to certain websites or services, your email address may be abused. The amount of spam you receive often depends on where you use your email address.

You can enhance and customize our filtering system using the Not spam list and Block list. We are constantly improving our spam filtering system, but some spam messages may slip through our filters, and some legitimate messages may be mislabeled as spam. Proton Mail uses a smart spam detection system to automatically filter messages to your Spam folder or inbox and custom folders (new window).

Email servere are rejecting proton email