Exchange Server Toolbox
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One source which may cause this problem are the ClamAV mirror servers. To solve the problem, please delete the following file:
"URIBL_BLOCKED ADMINISTRATOR NOTICE: The query to URIBL was blocked."
URIBL provides public lookups over DNS for low volume usage. If you spam check a large amount of email, or you use a shared DNS platform for resolution, you may receive a response saying the query was refused. That said, Public DNS providers such as OpenDNS or Google Public DNS are effected due to the high volume of queries they generate, as are many other internet service providers (ISP) that use caching nameservers for their customer base.
To guarantee full functionality of SpamAssassin, forwarding should be implemented for the following domains:
See: http://www.jam-software.com/spamassassin_in_a_box/online_manual/EN/configuredns.html for more information.
Also, what is the best way to a .eml back to the recipient if it is a false positive email? If I send it again it gets caught by the spam filter again.
The ExchangeServer Toolbox "works before" the IMF. So if you like to use IMF together with the Exchange Server Toolbox it 's ok. The SpamAssassin used by the Exchange Server Toolbox adds mail headers to every scanned mail and the spam report to the event log . So if you have false positives you should have a look at the mail header or in the log of the Exchange Server Toolbox which SpamAssassin spam rules matched on that mail and should train the bayes filter. Eml files from the backup can easily be "send" to the Exchange Server again by using the Exchange Server Pickup folder. Where you can find the pickup folder depends on the Exchange Server version you use and its configuration.See: Microsoft Technet
You may update the dlls and exe files (C:\Programs\Common Files\JAM Software\ClamAV) of ClamAV your self by getting them from the ClamWin (http://www.clamwin.com/ ) project. But we do not give any support for this. It may cause no virus to be detected or any mail/file be detected as virus. We once had this situation when ClamWin changed some interfaces which did not result in error, just in such a strange behavior.
Hint: The virus signature files used by ClamAV are updated automatically at least every 3 hours.
The integrated SpamAssassin does automatically use RBL 's.You can see this by having a look at the mail header of a spam mail scanned by the Exchange Server Toolbox:
* 0.9 RCVD_IN_PBL RBL: Received via a relay in Spamhaus PBL
* -2.0 AWL AWL: From: address is inthe auto white-list
The ExchangeServer Toolbox for Exchange Server 2003 does not allow to block/refuse mails, so mails can only be tagged, saved to HD, redirected to another mail address etc.. But the Exchange Server Toolbox for Exchange Server 2007 and newer can do this.
Yes, you can adjust the SpamAssassin rules as you like.
You can use the build in custom SpamAssassin config file editor which you can find under Spam Options to create a .cf-file suited to your needs.
Alternatively you can create a .cf-file manually and store it together with all the other .cf-files.
We recommend to use the letter "X" as prefix for the name of your CF-file (like"XMyRules.cf").
SpamAssassin as well as ClamAVdoes already update its rules / virus signatures every 3 hours automatically.
Grey listing seems to work on first glance, but actually it’s efficiency is declining. On one hand, many spammer have adapted, esp. spam bots can circumvent grey listing by multiple delivery attempts. On the other hand will grey listing increase the traffic, enlarge delivery times and cut down delivery dependency. So, most experts advice on NOT using grey listing, because it produces more trouble than it prevents. Best way for disburdening the internet from spam is to throw it away after acception.
Yes, you can use the build in custom SpamAssassin config file editor which you can find under Spam Options to create a .cf-file suited to your needs.
Alternatively you can create a .cf-file manually and store it together with all the other .cf-files. Because SpamAssassinprocesses the .cf-files in alphabetical order, you should call your own.cf-file in a way, that it will be processed last (e.g. use x, y, z as firstletter of your file’s name : XMySettings.cf).
Yes, you can. Place your own score best in local.cf, so they will overwritethe default values.
Yes, the Exchange Server Toolbox takes action right after SMTP receiving.
Sorry, the administration interface will work only on the Exchange Server machine.