IP connection error

Hi all!

First post

I need your help. I do have same trouble receiving mail.

We have a fortiAnalyzer and see the following logging:

In the first row we revived mail en the next row the Fortigate denied the connection.

In the next two posts I will add the details from row one and two.

Configuration: We have a VIP (port 25) rule from wan1 to internal vlan servers.

How is this possible?

Thanks

New Member

Hello,

I found my solution. I was able to make a packet capture and found corrupt packages.

The WAN interface had a bad MTU size.

Greetz,

Undertake,

New Member

try with this command :

#config log memory filter #set severity information #end

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