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jZaw
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Post subject: securing an email server?
 Posted: Sep 03, 2003 - 08:02 PM
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Bug Mad
Joined: Sep 03, 2003
Posts: 232
Location: Manchester UK
Status: Offline
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I'm wondering if Eusty can help me with an email server I've just set up
I need to make sure I'm not running as an open relay
rofl |
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eusty
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Post subject:
Posted: Sep 03, 2003 - 10:36 PM
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Bug Admin
Joined: Aug 28, 2003
Posts: 1101
Location: King's Lynn
Status: Offline
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http://www.abuse.net/relay.html
Connecting to mail.eusty.net for anonymous test ...
<<< 220 eusty.net Mercury/32 v3.32 ESMTP server ready.
>>> HELO www.abuse.net
<<< 250 eusty.net Hello, www.abuse.net.
Relay test 1
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@abuse.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<relaytest@abuse.net>
<<< 553 We do not relay without RFC2554 authentication.
Relay test 2
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<relaytest@abuse.net>
<<< 553 We do not relay without RFC2554 authentication.
Relay test 3
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<relaytest@abuse.net>
<<< 553 We do not relay without RFC2554 authentication.
Relay test 4
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<relaytest@abuse.net>
<<< 553 We do not relay without RFC2554 authentication.
Relay test 5
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@[81.6.244.57]>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<relaytest@abuse.net>
<<< 553 We do not relay without RFC2554 authentication.
Relay test 6
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<relaytest%abuse.net@eusty.net>
<<< 550 Address '<relaytest%abuse.net@eusty.net>' not known here.
Relay test 7
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<relaytest%abuse.net@[81.6.244.57]>
<<< 553 We do not relay without RFC2554 authentication.
Relay test 8
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<"relaytest@abuse.net">
<<< 553 Invalid RFC821 mailbox specification.
Relay test 9
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<"relaytest%abuse.net">
<<< 553 Invalid RFC821 mailbox specification.
Relay test 10
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<relaytest@abuse.net@eusty.net>
<<< 553 We do not relay without RFC2554 authentication.
Relay test 11
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<"relaytest@abuse.net"@eusty.net>
<<< 553 We do not relay without RFC2554 authentication.
Relay test 12
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<relaytest@abuse.net@[81.6.244.57]>
<<< 553 We do not relay without RFC2554 authentication.
Relay test 13
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<@eusty.net:relaytest@abuse.net>
<<< 553 We do not relay without RFC2554 authentication.
Relay test 14
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<@[81.6.244.57]:relaytest@abuse.net>
<<< 553 We do not relay without RFC2554 authentication.
Relay test 15
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<abuse.net!relaytest>
<<< 553 Invalid RFC821 mailbox specification.
Relay test 16
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<abuse.net!relaytest@eusty.net>
<<< 550 Address '<abuse.net!relaytest@eusty.net>' not known here.
Relay test 17
>>> RSET
<<< 250 Command processed OK.
>>> MAIL FROM:<spamtest@eusty.net>
<<< 250 Sender OK - send RCPTs.
>>> RCPT TO:<abuse.net!relaytest@[81.6.244.57]>
<<< 553 We do not relay without RFC2554 authentication.
Relay test result
All tests performed, no relays accepted. |
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Post subject:
Posted: Sep 03, 2003 - 10:39 PM
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| héhé sorry i couldnt resist ... i had heard othewise |
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jZaw
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Post subject:
Posted: Sep 03, 2003 - 10:41 PM
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Bug Mad
Joined: Sep 03, 2003
Posts: 232
Location: Manchester UK
Status: Offline
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that last one was me ... for some reason i forgot to log in  |
_________________
do acts of random kindness and senseless beauty!
save nat coll coop
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Post subject:
Posted: Sep 04, 2003 - 10:40 AM
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I've been having problems with relay attempts from the far east, loads of them!!!
I've had to set the firewall to drop some IP blocks on port 25 to stop my mail server going crazy !! |
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eusty
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Post subject:
Posted: Sep 04, 2003 - 10:35 PM
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Bug Admin
Joined: Aug 28, 2003
Posts: 1101
Location: King's Lynn
Status: Offline
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CTCNetwork
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Post subject:
Posted: Oct 16, 2003 - 01:26 AM
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Bug Mad
Joined: Oct 16, 2003
Posts: 280
Location: Nottingham
Status: Offline
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Well, Well, Well, fancy meeting you two here . . ;o)
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eusty
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Post subject:
Posted: Oct 16, 2003 - 08:42 AM
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Bug Admin
Joined: Aug 28, 2003
Posts: 1101
Location: King's Lynn
Status: Offline
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jZaw
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Post subject:
Posted: Apr 21, 2004 - 12:40 PM
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Bug Mad
Joined: Sep 03, 2003
Posts: 232
Location: Manchester UK
Status: Offline
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| Eusty wrote: | I've been having problems with relay attempts from the far east, loads of them!!!
I've had to set the firewall to drop some IP blocks on port 25 to stop my mail server going crazy !! |
yeah i have half of china half of korea and most of nigeria blocked in my firewall too
damn annoying spammer scammers grrr |
_________________
do acts of random kindness and senseless beauty!
save nat coll coop
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Post subject:
Posted: Jul 16, 2004 - 02:22 PM
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Greetings,
Apart from my firewall (Agnitum Outpost Pro), I also use Block List Manager. 
One of the lists it downloads includes the blocks of IPs for Far Eastern countries known for spamming/relaying/hacking/etc.
I've found its lists particularly useful as a plug-in to my firewall - apart from all the other security-related applications/tweaks I have! 
Kindest regards,
James |
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