Hello everyone,
i have folowing issue, i use Sophos 9.3 06 Home license in my lab requerement with WAN Interface connected to the Internet and LAN Interface with an Exchange Server.
I Use 2 Dnat´s for Exchange one with 443 and one with 25.
the Problem is, if i connect to OWA the connection is very slow and takes me minutes to authenticate and to open my Mails.
The same if i go over 443 with my Outlook to sync my mails. for a 2MB Email it takes about 30 Minutes.
I tried to turn everything off like
NO ATP / ANTIVIRUS / IPS / EMAIL PROTECTION etc.
only Firewall, only 2 Dnat´s
nothing helps.
if i change my Puclic dns MX Entry to my FortigateVM and configure DNAT There everything functions without any problems and very fast.
The Downloads from Server are 100X Faster then before.
I realy do not understand what could be the Problem.
i mean it´s just DNAT it´s not a WAF. Why is Sophos slowing the Connection down?
is this because of the Home License maybe?
do u have any idea?
Thank you in advance
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