Thanks for everyone
It's working after few hour..
My ISP may have blocked port 25 outbound
It' working well now
Sorry for answer so late, because of busy with my business
Thanks again
TOM
2014-02-21 11:53 GMT+08:00 Eric Kimminau :
> 1) Postfix has NO impact on telnet. If you cannot telnet outbo
1) Postfix has NO impact on telnet. If you cannot telnet outbound to a
remote port 25 the problem is that something on your host is blocking
port 25 or something upstream from you is blocking port 25.
Can you perform the following:
telnet localhost 25
If this works, you CAN telnet to port 25
On 2014-02-21 03:41, Feel Zhou wrote:
-A INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j ACCEPT
it might be geoip blocking you see to the recipient mailservers if you
not see it to all recipient ips
if that is it, then you can just remove recipient domain from dns with
bind9 rpz zone
On Fri, Feb 21, 2014 at 10:31:18AM +0800, Feel Zhou wrote:
> Today, one of my postfix server can not telnet any other mail server's port
> 25.
If you cannot make a TCP connection to port 25, your problem is
outside Postfix. Your ISP may have blocked port 25 outbound.
> It's working before 9:00a
On Thu, Feb 20, 2014 at 9:31 PM, Feel Zhou wrote:
> Hello, My friend
> This is Tom, I'm sending my greeting from China.
> Today, one of my postfix server can not telnet any other mail server's port
> 25. It's working before 9:00am(bejing time CHina), I have restart the mail
> server and reinstall
-A INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j ACCEPT
firewall is ok
2014-02-21 10:37 GMT+08:00 Venkat :
> On Thu, Feb 20, 2014 at 6:31 PM, Feel Zhou wrote:
>
>> Hello, My friend
>> This is Tom, I'm sending my greeting from China.
>> Today, one of my postfix server can not telnet an
On Thu, Feb 20, 2014 at 6:31 PM, Feel Zhou wrote:
> Hello, My friend
> This is Tom, I'm sending my greeting from China.
> Today, one of my postfix server can not telnet any other mail server's
> port 25. It's working before 9:00am(bejing time CHina), I have restart the
> mail server and reinstall
Hello, My friend
This is Tom, I'm sending my greeting from China.
Today, one of my postfix server can not telnet any other mail server's port
25. It's working before 9:00am(bejing time CHina), I have restart the mail
server and reinstall the postfix. but it's looks like not working. How can
I fix t
