SMTP Problem

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SMTP Problem

Postby piwvh » 29 Oct 2014 22:19

I have a vps with Centos 6.5 and postfix installed. When I want to connect to a smtp server like google or mailgun, I get the error 502 command not implemented.
I asked about it and people said it is because of CopFilter.
http://serverfault.com/questions/640357 ... mplemented
I wanna know is it true? And if it is, what should I do? I have not installed CopFilter.

And this is what happens:
[root@mail ~]# telnet smtp.gmail.com 25
Trying 74.125.196.108...
Connected to smtp.gmail.com.
Escape character is '^]'.
220 smtp.passthru
HELO
250 smtp.passthru
STARTTLS
502 Command not implemented
piwvh
 
Posts: 1
Joined: 29 Oct 2014 22:15

Re: SMTP Problem

Postby ShelbyGT500 » 05 Nov 2014 00:48

Hi,

And welcome on Copfilter Forum ! :D
piwvh wrote:I have not installed CopFilter
You give the answer.
Copfilter is an addon for IPCOP. You don't use IPCOP (firewall) , and not Copfilter , so this is not an issue with them but with your server (check port , gmail port is 587) .

Regards.

ShelbyGT500
ShelbyGT500
 
Posts: 846
Joined: 13 May 2010 22:37
Location: FRANCE


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