How to disable greylisting spam protection in Plesk

This guide will show you how to disable greylisting for your domain in Plesk.

Greylisting protects your domain from spam by declining the first connection attempt from the sending server, and then accepting a later connection. This can cause delays in email receipt and in some cases (where sending servers use multiple different servers for sending email) can cause messages to not be received. You can read more about how greylisting works here.

If you plan to disable greylisting entirely, you can expect that, after disabling greylisting, you will experience a larger quantity of spam reaching your email addresses. An alternative to disabling greylisting is to whitelist only those email addresses or domains which you wish to allow through our spam protection. Click here for our guide on whitelisting an email address in Plesk to learn how to do that.

Please note that you must be the administrator of your web hosting account to follow these steps. If you are not, you will need to ask your domain administrator to complete them for you. If you only have mail user access, you may be able to use the guide linked above to whitelist an email address instead.

If you still wish to disable greylisting entirely, here’s how:

1. Log in to Plesk
2. Choose the “Mail Settings” button under the domain you wish to adjust
3. Uncheck the box beside “Switch on greylisting spam protection for all mail accounts under this domain” and click OK

Greylisting will now be disabled for the domain.