Hello forum.
I have an issue that I would like to discuss.
We currently have an ASG 7.305 running.
Our SMTP settings allow our local LAN to relay email directly from Outlook or any other client.
The problem is that there are no limits to what sender domain you are allowed to send email from.
I would like only to allow sender domain to be the ones listed in our SMTP profiles.
Is this possible?
The problem is that anyone on the LAN can fake a sender domain address, this is no good and a big security issue. If a computer on the LAN gets infected with a virus this could be used as an exploit.
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