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Issue whitelisting webmail

Daniele Palara

New Pleskian
Hi everybody,
i'd like to close smtp relay but horde webmail.
So I setup outgoing mail limit to 0 in mail server setting and I white list localhost (127.0.0.0 / 8, ::1 / 128).
Anyway, email messages sent from horde webmail are blocked by outgoing mail limit.
Why?
 
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