ISS Information Systems & Services - Fighting Spam at DCU

Manual Whitelist

You must login to the system to enter specific mail addresses or domains into your whitelist.

Click on Filter Rules

Filter Rules Link

Then click on User Whitelist

User Whitelist Link

To whitelist a specific mail address enter the address in the Sender Email: text box and click Add.

whitelisted email

To whitelist a mail domain enter the domain in the Sender Domain: text box and click Add.

Whitelisted email

This would mean that anyone with an address could send you mail without being quarantined. Whitelisting a domain in this way can allow spam through. Quite often spammers forge common domains as the from address. So e.g. if you whitelist you may allow some spam through.