Block spam emails sent to unknown recipients
Many organisations are bombarded each day with thousands of spam emails directed to non-existent addresses. Among other things, these emails cause a deluge of NDR’s (Non Delivery Reports), which in turn needlessly hold up email queues. With iQ.Suite, you can easily block these emails. Here’s how it’s done:
Step by Step:
- Create a new iQ.Suite Wall Address Filtering job. This job should be at the start of the processing order.
- Create address procedures for all external emails sent to the organisation, unless the recipient is contained in the Active Directory/LDIF file.
‘Active Directory Objects’ is found under ‘iQ.Suite Address Lists’. This object represents iQ.Suite’s knowledge of all users, groups, etc. that exist in the Active Directory/LDIF. Conversely, all internal recipients who are not recognised by iQ.Suite are treated as non-existent users.
- The actions you should take are ‘Copy to Quarantine’ and ‘Delete E-mail'. The affected emails are thus first of all placed in quarantine. This has a two-fold purpose: Firstly, the emails collected there are checked and secondly, no unwanted NDR’s are created by the Exchange/SMTP server.
- IMPORTANT: This process is not technically able to distinguish between a mistyped recipient address and a deliberate spam attack. That is why the emails in the ‘Unknown recipient’ quarantine have to be checked.
If you would like to see more tips on how to get the most out of iQ.Suite for Exchange/SMTP, visit our workshop ‘Optimize your iQ.Suite’.
