Hi all!
I have some strange problem with my Raptor Firewall 6.5 on Windows NT.
Some of uor customers from certain domains were not able to send mail to our domain. If the sent it from hotmail.com they were able to send mail to us.
When I spoke to their technícians they told me that it had something to do with Syn Flood protection.
When I disable Syn Flood protection they are able to send me mail, but I told them that this was not a resolution, just a quick way to avoid the problem at the moment.
So still they are not able to send me mail.. Unless I decide to disable Syn Flood protection...
Have you heard anything more about this.? It was something about this.
This is the answer that I received from their tech support.
----------------------------------------------------------
"The problem occurs when the email is sent to a system behind a Raptor
firewall. The raptor firewall adds 1000000 to the sequence number of the
mail, which is consequently rejected by the firewall on our mail servers as
it checks the sequence numbers and this value is out of range. There is
currently no solution to this problem."
----------------------------------------------------------
What can I do...? They are not willing to co-operate with me about another solution..
Have any of you heard anything like this? What type of firewalls have this stupid behaviour..?
Thanks in advance!
I have some strange problem with my Raptor Firewall 6.5 on Windows NT.
Some of uor customers from certain domains were not able to send mail to our domain. If the sent it from hotmail.com they were able to send mail to us.
When I spoke to their technícians they told me that it had something to do with Syn Flood protection.
When I disable Syn Flood protection they are able to send me mail, but I told them that this was not a resolution, just a quick way to avoid the problem at the moment.
So still they are not able to send me mail.. Unless I decide to disable Syn Flood protection...
Have you heard anything more about this.? It was something about this.
This is the answer that I received from their tech support.
----------------------------------------------------------
"The problem occurs when the email is sent to a system behind a Raptor
firewall. The raptor firewall adds 1000000 to the sequence number of the
mail, which is consequently rejected by the firewall on our mail servers as
it checks the sequence numbers and this value is out of range. There is
currently no solution to this problem."
----------------------------------------------------------
What can I do...? They are not willing to co-operate with me about another solution..
Have any of you heard anything like this? What type of firewalls have this stupid behaviour..?
Thanks in advance!