Re: [IMail Forum] Control Access Allowed Machine IP Keeps Disappearing

[Matt]

This was also submitted as a ticket to Ipswitch and we determined that 
it was likely that the "Auto deny possible hack attempts" setting was 
what was throwing the gateway's IP into the ACL.  This setting will 
cause an IP that sends addressees that are too long to be blocked by the 
ACL.  It's designed as buffer overflow protection, but it unfortunately 
caused other issues and it shouldn't be used if you are behind a gateway 
due to the chance that it could hit your gateway's IP.

The Dictionary Attack Settings are set that way so that they would never 
actually trigger.  It likely works with all zeros, but this doesn't 
cause any issues the way that it is.

Matt



Marc Catuogno wrote:

I did that, it still kept adding my gateway and other IPS.  So far 
this hasn't. 

 

 

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*From:* [EMAIL PROTECTED] 
[EMAIL PROTECTED] *On Behalf Of *John T (lists)
*Sent:* Monday, March 12, 2007 11:09 AM
*To:* Imail_Forum@list.ipswitch.com
*Subject:* RE: [IMail Forum] Control Access Allowed Machine IP Keeps 
Disappearing

 

Marc, with the settings you have, you might was well set them to 0.

 

*John T*

 

-----Original Message-----
*From:* [EMAIL PROTECTED] 
[EMAIL PROTECTED] *On Behalf Of *Marc Catuogno
*Sent:* Sunday, March 11, 2007 7:58 PM
*To:* Imail_Forum@list.ipswitch.com
*Subject:* RE: [IMail Forum] Control Access Allowed Machine IP Keeps 
Disappearing

 

I had a vaguely similar problem where IMAIL kept adding my gateway to 
the deny list  I changed the settings as follows and the problem seems 
to have gone away:

 

 

        

*Dictionary Attack Settings*

 

        

Max Invalid Recipients Per Session:

        

 

 

        

Soft Error Limits:

        

 

 

        

Hard Error Limit:

        

 

 

        

Minutes To Deny Access:

        

 

 

        

Error Delay Seconds:

        

 

 

        

 

        

 

*Security Options*

        

 

Copy to Mail Address:

        

Enable Copy All Mail

        

 

 

        

Allow Remote Mail to Local Groups

        

 

 

        

Allow Remote View of Local Groups

        

 

 

        

Check Valid Sender

        

 

 

        

Auto Deny Possible Hack Attempts

        

 

 

        

Disable SMTP "VRFY" Command

        

 

 

        

 

        

 

        

 

        

 

 

 

-----Original Message-----
From: [EMAIL PROTECTED] 
[EMAIL PROTECTED] On Behalf Of Jeffery Rehm
Sent: Sunday, March 11, 2007 10:15 PM
To: IMail Forum
Subject: [IMail Forum] Control Access Allowed Machine IP Keeps 
Disappearing

 

 

Ok, now this is getting annoying...  IMail Access Control is set to DENY

all computers except one particular machine.  Three times today I have

had to go back in and add the machine to the list of allowed addresses. 

The IP in question will have access for a while and then all of a sudden

stop.  I go to the Access Control list and the IP is gone again.  This

has been going on for over a week and started happening all of a

sudden.  This is IMail 2006.

 

 

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