Spam Filter ISP Forums http://www.logsat.com/spamfilter/forums/ This is an XML content feed of; Spam Filter ISP Forums : Last 10 Posts Wed, 20 Aug 2008 10:24:14 +0000 Tue, 19 Aug 2008 21:48:03 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.06 30 www.logsat.com/spamfilter/forums/RSS_topic_feed.asp Spam Filter ISP Support : Scanning outgoing mail http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6541&PID=12338#12338 Author: LogSat
Subject: Scanning outgoing mail
Posted: 19 August 2008 at 9:48pm

If an IP is in the IP whitelist, it will *always* be able to relay and send emails thru SpamFilter. The only time an email will be blocked is if you've installed the optional anti-virus plugin, and the email contains a virus. In this case, virus-infected emails will always be stopped (but I doubt this is the case here).

Are you 100% sure that the "557" unable to relay error is generated by SpamFilter and not by your destination SMTP server...?

It is to note that, again, as we mentioned earlier, SpamFilter will forward all emails to your destination SMTP server for delivery. If the source of the emails is the server "mail.domainname.dk", and this server is the same one in SpamFilter's "Destination Server", you will need to be careful in avoiding mail loops, as every email SpamFilter receives will be forwarded back to mail.domainname.dk for the actual delivery.


]]> Tue, 19 Aug 2008 21:48:03 +0000 http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6541&PID=12338#12338 Spam Filter ISP Support : Scanning outgoing mail http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6541&PID=12337#12337 Author: wtsgruppen
Subject: Scanning outgoing mail
Posted: 19 August 2008 at 5:12pm

OK we've tried with the number one solution, but we still are not able to relay (error 557 in the mail I'm keep getting back).
 
Could it be the following:
In "Settings" -> "Configuration"
We have the "Destination Server" set to our server mail - mail.domainname.dk
 
This server is also the one I'm trying to send mail from - Could this be the problem, and that the "destination Server" should be the one my Hosting provider is providing?
]]> Tue, 19 Aug 2008 17:12:29 +0000 http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6541&PID=12337#12337 Spam Filter ISP Support : Scanning outgoing mail http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6541&PID=12336#12336 Author: LogSat
Subject: Scanning outgoing mail
Posted: 19 August 2008 at 4:14pm

SpamFilter is mainly designed to process incoming emails, which are then forwarded to your destination SMTP server(s) holding the actual mailboxes. To use SpamFilter as an "outgoing SMTP server", and relay emails out to the internet, there are a couple of options available.

1. You can add the IP addresses/networks of the users who wish to use SpamFilter as their "Outgoing SMTP Server" to the IP address whitelist in SpamFilter. Only IPs that have been whitelisted will be able to send emails out to the internet.

or...

2. SpamFilter supports SMTP Authentication. Users can be authenticated using either Active Directory, LDAP, or Unix-style password files. SSL support is also available. Any user that authenticates successfully is able to use SpamFilter to relay emails to the internet (and thus use it as their Outgoing SMTP server).

Please note that in all cases, SpamFilter will always forward emails to your destination SMTP server for delivery, even though these emails will be sent to external domains. For security reasons, to avoid becoming an open relay, SpamFilter will never emails directly to the internet.



]]> Tue, 19 Aug 2008 16:14:14 +0000 http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6541&PID=12336#12336 Spam Filter ISP Support : Scanning outgoing mail http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6541&PID=12335#12335 Author: wtsgruppen
Subject: Scanning outgoing mail
Posted: 19 August 2008 at 2:49pm

Hi there,
We're in the process of buying SF for our company to use for our customers. It looks nice, and we're testing right now.
 
We have one question though, which I can't see too much info about.
 
We've got it working innound - works great.
 
But how about outbound.
 
Setup: The SF server is at our location, recieving mails for three customers, and forwarding to their servers on their own network (off location).
 
How can I get the customers server to send via the SF server. What setup do I need to make on the SF server?
 
I'm using Exchange, and the setup on the Exchange is pretty much sthraight forward.
]]> Tue, 19 Aug 2008 14:49:28 +0000 http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6541&PID=12335#12335 Spam Filter ISP Support : Exception occurred during TFilterObject.GetLastUpd http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6539&PID=12333#12333 Author: mbrusl
Subject: Exception occurred during TFilterObject.GetLastUpd
Posted: 17 August 2008 at 11:02pm

Well....like I said in the first message, that's what I had noticed right a way when messing with the backup server that only has a backup of the DNSand then when I was done, I plugged the server back into the network and noticed the error messges when I looked at the log about an hour or so later.  The only other thing thats been out of the norm is that the firewall has been getting pounded hard with SQL injection attempts, but those never get past.  @!#$ spammers, must be pissing some of them off.  Ohh well. 

Thanks again Roberto.

]]> Sun, 17 Aug 2008 23:02:54 +0000 http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6539&PID=12333#12333 Spam Filter ISP Support : Exception occurred during TFilterObject.GetLastUpd http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6539&PID=12332#12332 Author: LogSat
Subject: Exception occurred during TFilterObject.GetLastUpd
Posted: 17 August 2008 at 10:51pm

SpamFilter v3.5 was released about a year ago, and yours was the single report with such an error, so I'm hoping that it was a very, very rare set of circumstances that caused the bug to surface (again hoping that the one we found was indeed the one that affected you).]]> Sun, 17 Aug 2008 22:51:56 +0000 http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6539&PID=12332#12332 Spam Filter ISP Support : disable greylisting for whitelisted IP's http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6537&PID=12331#12331 Author: LogSat
Subject: disable greylisting for whitelisted IP's
Posted: 17 August 2008 at 10:48pm

WHile a very good idea, this request can't be implemented for technical reasons. The greylist is implemented at the TCP level right after a connection is made, before any MAIL FROM / RCPT TO commands are sent to SpamFilter. In SpamFilter Enterprise the IP whitelists are however dependent on the domain specified in the RCPT TO command, because in SpamFilter Enterprise all whitelists/blacklists are customizable for each domain. Due to this, since the greylist is checked before the RCPT TO command is used to determine which IP whitelist to use, the greylist filter has no idea of what the IP whitelist entries are going to be.

SpamFilter ISP "standard" uses the same code-base and same features of SpamFilter Enterprise. So even though in SpamFilter ISP there is only one whitelist, and the greylist filter would then be able to theoretically know what that is, due to the sharing of features between the two versions, we're hesitant to make the two versions behave differently. We'll monitor this thread to see what feedback we receive on this.]]> Sun, 17 Aug 2008 22:48:47 +0000 http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6537&PID=12331#12331 Spam Filter ISP Support : Exception occurred during TFilterObject.GetLastUpd http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6539&PID=12330#12330 Author: mbrusl
Subject: Exception occurred during TFilterObject.GetLastUpd
Posted: 17 August 2008 at 10:42pm

Thanks Roberto,

I restarted the service and have not run into that problem as of yet again.
]]> Sun, 17 Aug 2008 22:42:58 +0000 http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6539&PID=12330#12330 Spam Filter ISP Support : Exception occurred during TFilterObject.GetLastUpd http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6539&PID=12329#12329 Author: LogSat
Subject: Exception occurred during TFilterObject.GetLastUpd
Posted: 17 August 2008 at 10:34pm

While we have not been able to reproduce the problem, we found a bug in SpamFilter's code that *may* have caused this problem. What is unusual is that this bug has been present since SpamFilter v3.5, but never shown any "symptoms". We'll have a new build released within the next 24/48 hours with a fix. ]]> Sun, 17 Aug 2008 22:34:54 +0000 http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6539&PID=12329#12329 Spam Filter ISP Support : Log file format http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6538&PID=12328#12328 Author: LogSat
Subject: Log file format
Posted: 17 August 2008 at 10:16pm

The behavior on what happens when an email is not in Authorized TO whitelist is dictated by a parameter in the SpamFilter.ini file (DisconnectOnNonAuthorizedTO). Depending on this value connections can be immediately disconnected when an email address is not in that list, or the rejection will be postponed till later. Partly due to this reason, the rejection message was made different than the other cases several years ago when this list was implemented. Since then, there have been several products and customers who have been parsing SpamFilter's logs for reports, and for this reason we are *very* hesitant in changing existing logging syntax in order to prevent problems in anyone who is relying on the current specific format in their reports.]]> Sun, 17 Aug 2008 22:16:26 +0000 http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6538&PID=12328#12328