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F-Secure Protection Server ® - Version 8.4 does not receive some e-mail - sent from the same domain

pdy
pdy Posts: 1 Security Scout
in Business Suite

Hello,
We use  F-Secure Protection Server ®  - Version 8.4 as a relay of email incoming to our Exchange server.
First item in connection of our network with internet is Cisco 1700. It works as NAT and work with FrameRelay internet connection. It is stabil and works fine. It is dedicated only to work with e-mail servers and F-secure. Problem is, that some mails goes through F-secure and then are received by an exchange edge instation - edge1.ankol.com.pl but not all of them (they are not a spam and do not goes to edge1.ankol.com.pl). What is more strange, for eg e-mails from Gmail servers sometimes comes throug properly and sometimes we receive in logs of f-secure status 'incomplete'. We do not know why. We saw in logs, that emails sent from gmail once use sending server and we receive for this message status 'incomplete' so than it never send properly. Some of Gmail servers works with f-secure fine, e-mail are received by f-secure and than are sent to edge. If once there is a status 'incomplete' in some e-mail and later sending server tries to resend it, finally these emails are never received by our server. Finaly sender receive an answer - error 4.4.2:
read error: generic::failed_precondition: read error (0): error
Final-Recipient: rfc822; xxxx@xxx.pl
Action: failed
Status: 4.4.2
Remote-MTA: dns; edge1.ankol.com.pl. (212.160.184.87, the server for the
domain ankol.com.pl.)
Diagnostic-Code: smtp; read error: generic::failed_precondition: read error (0): error
Last-Attempt-Date: Sat, 02 Dec 2017 07:29:46 -0800 (PST)

Some of our clients checked their systems and they do not have any troubles with any other customers.

We have checked our internet connection, router configuration, colisions, etc. Everything looks fine.
We asked our provider to check how DNS server work but they did not find any problems.

We think that there is some problem with  F-Secure Protection Server ®  - Version 8.4 but local distributor can not log into lower layer of this machine, they see only what we see via GUI (www).
What diagnose can we make? Did you have this kind of trouble? What is the reason?

Best regards,
Pawel

Comments

  • Laksh
    Laksh Posts: 237 Cybercrime Crusader

    Hi Pawel,

     

    Please get in touch with our support team here in order to troubleshoot further on this issue.

This discussion has been closed.

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