You can install over the top, just choose "upgrade" in the installer.

<p>I'm using MercS, MercP and MercC with about 10 users.  </p><p>MercS is configured not to relay without Authentication and uses a AUTH Password file.</p><p>Everything is working 100%</p><p>Now my problem is that I want one PC (192.168.65.70) to be able to send to any local user but should be BLOCKED from sending to ANY non-local email. Is this posible?  I've been playing around with the MercS Connection Control restrictions but no luck [:'(]</p><p> Any help would be greatly appreciated!</p><p>Jock </p>

<blockquote><div class="ForumReplyToPostArea"> <p>I'm using MercS, MercP and MercC with about 10 users.  </p><p>MercS is configured not to relay without Authentication and uses a AUTH Password file.</p><p>Everything is working 100%</p><p>Now my problem is that I want one PC (192.168.65.70) to be able to send to any local user but should be BLOCKED from sending to ANY non-local email. Is this posible?  I've been playing around with the MercS Connection Control restrictions but no luck <img src="http://community.pmail.com/emoticons/emotion-9.gif" alt="Crying"></p></div></blockquote><div class="ForumReplyToPostArea"><p>Not really going to help since this IP address as long as the sender is authentication will be allowed to send mail via MercuryS.  That said if the mail is not authenticated then mail to a local user can be sent but mail to a non-local user would be relaying and bounced.</p><p>There is generally nothing that will keep an authenticated connection from sending mail to anyone however you might be able to work something out with an outbound filer (Mercury v4.62 and later) that picks up the system name.   Here is the first Received header in the message I just got.  </p><p>Received: from web2 (192.168.1.20) by mail.praktit.se (Mercury/32 v4.70) with ESMTP ID MG00021C; 14 Apr 2009 23:28:56 +0200</p><p>If you were filtering using an expression filter on the IP address 192.168.1.20 [i.e.  Received: from web2 (192.168.1.20)*] you could do pretty much of anything you want with it including sending it back to the original sender. </p></div><blockquote><div class="ForumReplyToPostArea"><p> Any help would be greatly appreciated!</p><p>Jock </p> </div></blockquote>

[quote user="Thomas R. Stephenson"]<blockquote><div class="ForumReplyToPostArea"><p>Not really going to help since this IP address as long as the sender is authentication will be allowed to send mail via MercuryS.  That said if the mail is not authenticated then mail to a local user can be sent but mail to a non-local user would be relaying and bounced. </p></div></blockquote><div class="ForumReplyToPostArea"><p>[/quote]</p><p> </p><p>Aah I see, lol really not that complicated as it seemed last night! [:D] I just removed the AUTH password for the user that I do not want to allow to relay any non-local mail and removed SMTP auth on the email client, now I can send to any local account but not to any non-local! </p><p>I'm still using Mercury mail version 4.52, can I just install the newest version over the exsiting one or must I reconfigure everything from scratch again? (which I rather would try to avoid since everything is already working 100%)</p><p>Thank you soooo much!</p></div>