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  1. Thread: open relay??

    by sgatto
    Replies
    29
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    13,163

    Sorry, I'm relatively new to email trasport...

    Sorry, I'm relatively new to email trasport systems. Please take this post as an help-request not something against zimbra (which I'm evaluating for my company).

    I made a handmade test. From a...
  2. Thread: open relay??

    by sgatto
    Replies
    29
    Views
    13,163

    At the moment, I'm able to send email *from*...

    At the moment, I'm able to send email *from* zimbra (webmail) to another external account (gmail). But I'm not able to *receive* email because of a DNS misconfiguration (zimbra is on a private LAN,...
  3. Thread: open relay??

    by sgatto
    Replies
    29
    Views
    13,163

    thanks for your reply, I'll check for this. In...

    thanks for your reply, I'll check for this.

    In my understanding, when a packet passes through the firewall with a port forward, the packet retains its src address. Am I wrong ? This "open relay"...
  4. Thread: open relay??

    by sgatto
    Replies
    29
    Views
    13,163

    I've just installed Zimbra CS on a vm for testing...

    I've just installed Zimbra CS on a vm for testing purpose. ZCS is on a private lan, natted to Internet with port 25 forwarded from the firewall to zimbra private ip.

    I've tested smtp...
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