2018-01-30 14:42 GMT+03:00 G <secadm2...@gmail.com>: > On 01/29/2018 11:09 PM, jin&hitman&Barracuda wrote: > >> Hi >> >> We are tring to move our mx server to another isp. >> > > You have two postfix installations then, one in your current MX record and > a new > which is not yet published on DNS . Is that correct ? > > They gave us an IP address but there is some strange points. When i try to >> connect any mail related port on that ip, it send my connection to our new >> postfix server. There is a destination nat on it. It is strange becouse i >> can't see my actual source ip. I tried with many different hosts and It >> looks like there is a source nat and i saw same ip as my source ip wherever >> i try. >> > > Are you talking about telnet to this IP to check if it works OR you're > trying to send SMTP ? if the later is the your case > then it works as it supposed to , your MX record is on your current > installation not the new one . > > >> From new postfix server, when i try to reach any server on internet, i >> see another ip address on the source ip field and it is fixed too. >> >> I believe there is a mistake. Could it be feasible two different ip for >> incoming and outgoing on one mx server ? >> > > George >
Hi George > You have two postfix installations then, one in your current MX record and a new > which is not yet published on DNS . Is that correct ? Yes that is true. Actually the old mx is a QmailToaster but that is not the point. > Are you talking about telnet to this IP to check if it works OR you're trying to send SMTP ? if the later is the your case > then it works as it supposed to , your MX record is on your current installation not the new one . Actually I ran tests with basic nc (like telnet) on TCP 110, 143 and 587. Tcp 25 is blocking state on some firewall I guess. Fatih -- *There is no place like "/home"* *From HemiB A R R A C U D A !*
