MailEnable port 25 issue

saqib.iqbal
Posts: 3
Joined: Mon Jul 30, 2018 3:37 pm

MailEnable port 25 issue

Postby saqib.iqbal » Mon Jul 30, 2018 5:17 pm

I have clients who are using Mail Enable Standard and Enterprise version are encountering some issues in sending emails. Logs showing the "connection refused" error. For every client, I try to telnet the machines from public as well as private network on port 25 but unable to connect. The issue resolved after I restart the machines. Kindly tell me why I am encountering the mentioned issue. As, it is not a best approach to restart the machines everytime the issue occurs.

MailEnable-Ian
Site Admin
Posts: 8800
Joined: Mon Mar 22, 2004 4:44 am
Location: Melbourne, Victoria, Australia

Re: MailEnable port 25 issue

Postby MailEnable-Ian » Tue Jul 31, 2018 2:43 am

Hi,

When you say your restarting machines do you mean your restarting the MailEnable servers? A connection refused is most likely caused by the "Abuse detection and prevention" policy. The connection from the client is being refused most likely because it has been detected as abusive by either; invalid authentication attempts or bad commands. Therefore you need to inspect the relevant service log files that the client connects to. I.e IMAP, SMTP POP etc. You can also disable the abuse detection policy to see if this is in fact the cause of the problem. To disable the policy please see:

http://www.mailenable.com/documentation/10.0/Enterprise/Localhost_-_Policies.html -> Enable abuse detection and prevention
Regards,

Ian Margarone
MailEnable Support

saqib.iqbal
Posts: 3
Joined: Mon Jul 30, 2018 3:37 pm

Re: MailEnable port 25 issue

Postby saqib.iqbal » Tue Jul 31, 2018 12:20 pm

By restarting the machine means Restarting the server not MailEnable and the option you were talking about "Abuse detection and prevention" has already been disabled.

saqib.iqbal
Posts: 3
Joined: Mon Jul 30, 2018 3:37 pm

Re: MailEnable port 25 issue

Postby saqib.iqbal » Tue Jul 31, 2018 12:22 pm

MailEnable-Ian wrote:Hi,

When you say your restarting machines do you mean your restarting the MailEnable servers? A connection refused is most likely caused by the "Abuse detection and prevention" policy. The connection from the client is being refused most likely because it has been detected as abusive by either; invalid authentication attempts or bad commands. Therefore you need to inspect the relevant service log files that the client connects to. I.e IMAP, SMTP POP etc. You can also disable the abuse detection policy to see if this is in fact the cause of the problem. To disable the policy please see:

http://www.mailenable.com/documentation/10.0/Enterprise/Localhost_-_Policies.html -> Enable abuse detection and prevention



By restarting the machine I mean restarting the Server machine not MailEnable and "Abuse detection and prevention" has already been disabled.

MailEnable-Ian
Site Admin
Posts: 8800
Joined: Mon Mar 22, 2004 4:44 am
Location: Melbourne, Victoria, Australia

Re: MailEnable port 25 issue

Postby MailEnable-Ian » Wed Aug 01, 2018 1:00 am

Hi,

What is the exact error at the time in the log file your referring to? Can you post it up?
Regards,

Ian Margarone
MailEnable Support

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