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Spam Protection prevents receiving incoming

Hi,

Since my upgrade from 6.002 to 6.100 I'm experiencing problems with the
SMTP Proxy.

With SpamProtection ON I'm not receiving mails anymore. When I disable
SpamProtection, I see a SIGTERM of the incoming SMTP connection.

--- SYSLOG AFTER ENABLING SPAM PROTECTION :

2005:10:23-10:04:59 (none) exim[4980]: 2005-10-23 10:04:59 exim 4.43
daemon started: pid=4980, -q20m, listening for SMTP on port 25 (IPv4)
2005:10:23-10:04:59 (none) exim[4981]: 2005-10-23 10:04:59 Start queue
run: pid=4981
2005:10:23-10:04:59 (none) exim[4981]: 2005-10-23 10:04:59 End queue
run: pid=4981

-- SENDING MAIL FROM HOTMAIL AND WAIT xxxxxxxxxxxxxx@hotmail.com
H=bay21-f2.bay21.hotmail.com (hotmail.com) [65.54.233.91] P=esmtp S=1226
id=BAY21-F28E7A73FC10ADF824815FFA740@phx.gbl
2005:10:23-10:07:10 (none) exim[5211]: 2005-10-23 10:07:10
1ETasn-0001Lw-SF => bram@xxxxxxx R=static_route T=static_smtp
H=172.26.100.250 [172.26.100.250] 2005:10:23-10:07:10 (none) exim[5211]:
2005-10-23 10:07:10 1ETasn-0001Lw-SF Completed

I'm using policy smtp routing, with the following features enabled :
+ Use RBLs
+ Deny RCPT Hacks
+ Verify Recipient

Spam Protection settings are default.
With version 6.002 I didn't have any problems using Spam Protection.

Any suggestions ?

Cheers,

Bram van den Hout
LLCOM

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0 Prolific over 20 years ago

I have run into the same issue.
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0 Vukasin over 20 years ago in reply to Prolific

Is something blocking outgoing connections on port 6000?
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0 Bram1nat0r over 19 years ago in reply to Vukasin

No, there is nothing blocking port 6000.
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0 Bram1nat0r over 19 years ago in reply to Vukasin

No, there is nothing blocking port 6000.
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0 Bram1nat0r over 19 years ago in reply to Bram1nat0r

Correction on above post.
After some more research it turns out, that my provider is blocking destination TCP port 6000 !

Any suggestions/solutions/workarounds for this problem ?

Thanks,

Bram
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0 bagira over 19 years ago in reply to Bram1nat0r

Disable SPAM protection or talk to your provider to open port 6000.
/bagira
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0 Bram1nat0r over 19 years ago in reply to bagira

Hi,

I've mailed my provider, but I don't think that they will change someting. After some more research I found out that TCP 6000 is used by X11 and is vulnerable to hijacking and spoofing. Plus it was used once by a Trojan/Virus (no wonder my provider blocks this). See link below. Isn't it more sensible to agree on another port, other than TCP6000 ?

http://www.auditmypc.com/port/tcp-port-6000.asp

Cheers,

Bram
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0 doug_p over 19 years ago in reply to Bram1nat0r

Hopefully they will open up port 6000 for you, I'm not aware of there being another port for Cobian (though it would be nice to have an alternate available).
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