The Year in Review

Top 10 Exchange, Microsoft Outlook and OWA email security tips of 2007

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The results are in. Here are the top 10 most-clicked Exchange Server, Microsoft Outlook and Outlook Web Access (OWA) email security tips of 2007. From finding and fixing freeware and third-party antispam tools to blocking Outlook attachments and troubleshooting certificates, these were the email security topics that interested you the most in 2007.

#1    Adding self-signed root certificates to Windows mobile devices
Learn how you can avoid the cost of third-party Secure Sockets Layer (SSL) certificates by turning a self-assigned root certificate into a .CAB file that you can deploy to your Windows mobile devices.
#2    OWA 'Loading' problems with Internet Explorer security zones
Making changes to the definitions of Internet Explorer security zones can cause Outlook Web Access (OWA) to malfunction, particularly if it's done by a user who isn't well-versed in OWA's security zone setting requirements. Our expert explains how to ensure that your security zone settings are set up correctly.
#3    Symantec Mail Security for Microsoft Exchange crashes IIS
Symantec Mail Security for Microsoft Exchange can cause Internet Information Services (IIS) to crash unexpectedly. Find out how the problem manifests and how you can fix it.
#4    Reverse DNS mismatches mark Exchange email as spam
Many Internet Service Providers (ISPs) attempt to block spam using reverse DNS lookups on incoming email. This can cause problems for Exchange organizations in which DNS PTR records are incorrectly configured. Our expert provides tools and resources to help you solve these issues.
#5    SMTP greylisting problem on Exchange Server 2003 SP2
A greylisting problem on Exchange Server 2003 SP2 causes sent email to stack up in the SMTP queue and not get delivered. Discover three workarounds that fix the issue.
#6    How to set up an SSL certificate to encrypt OWA and ActiveSync traffic
Discover step-by-step how to set up Windows 2003 as a certificate authority, create an SSL certificate and encrypt email traffic for Outlook Web Access (OWA) and Exchange ActiveSync.
#7    Error: 'The name of the security certificate is invalid or does not match the name of the site'
Find out how to fix the Microsoft Outlook 2007 and Exchange Server 2007 error: 'The name of the security certificate is invalid or does not match the name of the site.'
#8    How to configure attachment blocking in Outlook Web Access
Learn how to edit the registry to customize what email attachment file extensions are automatically blocked by Outlook Web Access.
#9    Process, compress and block Microsoft Outlook email attachments
Read about an add-on that can convert Microsoft Outlook email attachments into .ZIP files, process and save attachments to designated folders, and block specified attachment types.
#10    Freeware 'greylisting' for Exchange Server
Between blacklisting and whitelisting is a sort of interim spam-fighting strategy called 'greylisting.' In this tip, our expert explains how greylisting works and points to a freeware greylisting application available for Exchange Server environments.

This was first published in December 2007

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