Keeping your junk e-mail filter updated

The tactics of spammers and the content of their messages are constantly evolving. For this reason, just like antivirus applications, the Outlook 2007 Junk E-mail filter’s effectiveness heavily relies on keeping its data file up-to-date.

Each version of Microsoft Outlook that contains a junk e-mail filter receives updates to the data file (outlfltr.dat) as part of the Microsoft-wide monthly update released on the second Tuesday of each month.

The updated outlfltr.dat is the result of the evaluation of hundreds of thousands of spam messages and constantly increases the filter “catch” rate for incoming junk email.

The recommended way to obtain updates to the Outlook Junk E-mail filter is by turning on the Automatic Updates option in the Windows Security Center (both in Windows Vista and Windows XP SP2). By turning this option on the Outlook Junk E-mail filter updates will be automatically downloaded and installed on you computer as soon as they are released. If you instead wish to download the updates manually, you can either select the “Check for Updates” option in the Outlook 2007 Help menu or by going directly to the Microsoft Update site.

We just released the latest update on Tuesday 7.10, so this is a great time to update. In the meantime, drop us a line. We want to hear from you about your experience with the Junk E-mail Filter and how we could make it better for you. Use the contact form on the Email link above.

Thanks!

Alessio Roic
Outlook Program Manager

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  • Almost all email will land in the junk mail folder after outlook updated with sp3.

  • Not sure where you are getting your info on IP's but I am currently being spammed at least twice a day by a spmmer who sends adds changing URLs (i.e. support@url.com) but all of the URLs have the exact same IP's and lead back to the same sever. This has been going on for more then a month now. Maybe knowing that Outlook can't filter these IPs has led spmmers to keep there IPs and just change there URLs. Anyways, at least in my case IP filtering would be nice.

  • I've just started getting hit by a spammer wanting to ship me a Toshiba Satellite Notebook - which of course I haven't ordered... He changes URLs with every mail. I mark each one 'add to blocked senders list,' but they never appear there, the messages just get moved to 'junk mail.' Any ideas??

  • TO: jmalachowsky Thanks for your message. Could you please clarify what do you mean when you say "[...] He changes URLs in every mail."? Are you referring to URls in the text of the message? Does the spammer change his email address with each new spam mail? Regards, Alessio Roic

    Outlook Program Manager

  • We recently upgraded to Outlook 2007 on a Windows Exchange server. In Outlook 2003 all messages in our Global Address List were automatically deemed safe, but this no longer seems to be the case. How can we automatically add these e-mail addresses to our "white list"?

  • I receive email from a club I belong to. it is sent individually, not as a BCC.

    The mail is grabbed by Outlook as junk mail.

    I right click on the mail and mark it as not junk as well as 'add sender to safe senders list',[I know the second right click is unnecessary] yet every time I receive the weekly email it ends up in the junk mail folder. Every time I retrieve it by right clicking and marking ' not junk'. Why is this?

    How can I fix it?

    regards

    Mike Coleman

    Cairns, Australia

  • I am having the same problem as the poster "emmsee". I have a friend that sends me email from her email account at work and it always goes to junk mail in Outlook. I have tried every method to mark this as "not junk", but it still ends up there. Are there any fixes for this? Thank you.

  • Melissa,

    the messages coming from GAL addresses should still be honored and bypass the Outlook junk email filter - no changes in this area took place between 2003 and 2007. I would suggest you take any message that is coming from the GAL and that is automatically moved to the junk email folder, and verify its Internet properties (you can do that by looking at the Internet headers properties of the message - open the message, expand the Options section of the ribbon - the internet headers section is at the bottom of the Message Options dialog). If you find the following line: "X-MS-Exchange-Organization-SCL: -1" then the message was stamped correctly by the Exchange server as an internal organization message. If not, then I would assume something has occurred on the Exchange server side that changed the behavior. Let me know your findings. Thanks Alessio Roic

    Outlook Program Manager

  • Mike,

    there could be several reasons as to why the mail still gets junked. Without looking at the message itself and at other settings it is hard to make an accurate diagnosis, so I will make a short list things to consider.

    - Verify that the sender address and/or domain is not in the blocked sender list.If it is, remove it and observe if any changes take place.

    - Consider that some filtering might also occur on your IP side - it is not uncommon for IPs to provide some antispam protection, and this could have messages moved to the Junk E-Mail folder automatically without Outlook intervention. If you're not sure I recommend contacting your IP to verify. Thanks Alessio Roic

    Outlook Program Manager

  • I switched from accessing my e-mail via POP to using IMAP. Now, Outlook 2007 will not engage the Junk Mail filter. The IMAP account is the only account I'm using. How do I make Outlook use the junk filter on my IMAP account?

  • I send an email to myself and Outlook 2007 puts it in the junk mail folder. The spam assisin score is .3

    Does this mean that somehow, the sending domian is on the "hidden" spam list that Microsoft includes in Outlook and uses to filter mail in Outlook. Does anyone know how to get a domain off that list?

    The mail was sent by Lyris, a well known mass emailing program. Is that the problem--Lyris in the header?

  • I have my own domain, every email I send to anyone using Outlook gets put in to their Junk E-mail filter. I have no idea why this is and have checked every blacklist I can find to look for my IP and domain. My domain is rideagainstthemachine.com and I use Google Apps for domains to send email. It got sent to everyone's junk folder back when I had my own email server as well. I'm not sending to multiple people or even remotely doing anything that might seem spam-related. How in the heck can I troubleshoot this?

  • Over the last couple of months I've noticed that Outlook has stopped passing through those messages that I have marked as "NOT Junk" via email address or other means. Virtually all mail from Microsoft re Updates and other requested information is junked. I get a few messages a day, but only if they are already in my contacts list. What do I need to do?

  • Same comment as Ruud Groeneveld - I'm using Windows Mail on Vista and you only seem to be able to add senders or sender domains to either safe list or blocked list one at a time. I have email folders full of emails that are all obviously junk so would be much nicer to be able to just mark them all and add to blocked list in one go! That would be a really great update to receive :)

  • I have excatly the same problem as the message posted by "Scott" above on Jan 22nd 2008. I have my own domain and several other that are hosted on the same server. Every time I send a message to an external email address it gets sent to the recipients Junk folder if they are using Outlook.

    My domain is valid, not on an IP blacklist anywhere that I can find. The domain it's self is for a business with legitimate content that is not related to anything dodgy. How do you tell Microsoft to STOP marking my emails as Junk? Who do I have to contact?

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