OK. NO TCO OR ROI HERE. WE LIED.
Posted on January 27th, 2010 by Krisztian | Permalink

The current trial version of ORF (4.3) supports Exchange 2010 after installing a patch, but you may receive an error if you try to install the registered build on top of this patched trial version. That is because the installer of 4.3 registered does not incorporate the Exchange 2010 patch by default.

To solve this problem, you should simply ignore the installation error during the conversion process, install the patch again for the registered build, then issue the following command in the ORF installation directory:

orfainst -install

This will be addressed by the upcoming 4.4 version, which includes the patch by default.

Posted on January 21st, 2010 by Krisztian | Permalink

Good news for people who want to use ORF on Windows Server 2008 or 2008 R2 with IIS SMTP (without Exchange): the wait will soon be over :)

We decided to release a new version before ORF 5 (which is expected to be released within a few months).

This interim release will incorporate the following improvements compared to 4.3:

  • Support for Exchange 2010 by default (no patch is required)
  • Support for IIS SMTP on Windows Server 2008 and Windows Server 2008 R2
  • Some bugfixes

The new version will be available within two weeks for everyone with a valid Software Maintenance Agreement.

Posted on January 11th, 2010 by Krisztian | Permalink

Lately, we have received many inquiries regarding the filtering of display names in emails. The display name in your email client (e.g. Outlook) is actually the From: field of the MIME email header. The MIME headers can be retrieved by selecting View | Options in Outlook (”Internet Headers”). To check the MIME headers in other clients, please visit this page). Example:

[...]
From: “VIAGRA \(c\) Best Supplier” (email@address)
[...]

You can filter this MIME From: field using the Keyword Blacklist of ORF:

1. Download the filter expression by right-clicking this link and selecting “Save link as…” (XML file)
1. Start the ORF Administration Tool
2. Expand Configuration / Tests / Tests in the left navigation tree and make sure the Keyword Blacklist test is enabled
3. Select Configuration | Import | Keyword blacklist… from the main menu, or navigate to Configuration / Filtering – On Arrival / Keyword Blacklist, right-click in the expressions box and select “Import list…”
4. Select the XML file you downloaded and click Open
5. If you already have some expressions in the list, you will be prompted “Do you want to overwrite…?”. Click “No” (otherwise your current expressions will be wiped out)
6. Press Ctrl + S to save and apply the configuration changes (pre-4.3 users should press Ctrl + U)

And that’s it: the expression above will block any emails, which have “Viagra” in their MIME From: email header line.

However, I should point out that we suggest relying on automated tests of ORF (like DNS and URL blacklists) as much as possible instead of adding keyword filtering expressions every time you receive a new type of spam (and instead of adding the sender to the Sender or IP Blacklists), so you should probably read our best practices guide regarding the recommended configuration if you have received such spam we mentioned above (”viagra” in the display name).

Our own ORF instance at Vamsoft (which is configured according to the guide) caught all of these using automated tests ;)

UPDATE: some of you guys reported that the regex doesn’t work: that’s because the expression above is altered by our blog engine, Wordpress (it replaces the double quote characters with left double quotation marks). To work this around, download this XML file from the link and import it to your Keyword Blacklist.