How Can I Blacklist / Block Spam Emails at Horde Webmail?

Login to your webmail account (;

  1. Select SPAM message(s)
  2. Click Other tab
  3. Select Blacklist


How to WhiteList Emails

You can whitelist email addresses that you want to make sure you receive and do not want them filtered by your spam filter.


You can also try to use Outlook filtering options if you are using Outlook.

Outlook Filter Options

Outlook Safe Senders or Safe Recipients Lists

Add Unwanted Names to the Blocked Senders List

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}

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