Thanks for the reply. > > >Can anyone tell me what outgoing ports I need to leave open for > the system > >to work correctly? Currently I've tried the obvious ones - 25,80,110,8383 > >and 53 for DNS but with only that selection open > > those are ports for ingress to Imail box, right? >
Yes. When I have the outgoing access control turned off, there's no problem. I'm forwarding the correct ports from outside the firewall to the correct server. The problem is when I try and restrict what's going back out from the server. > >nothing outside the firewall can communicate with the server. > > Houston, ... > > better go ask your firewall vendor and/or RTFM. It's an older and fairly basic hardware firewall but does the job. The manual is of no use in this situation and I've tried all the various online help system at both the vendor and Ipswitch sites but all I can find is a list of incoming ports that Imail uses. It may be a hardware issue I suppose but the fact that it works witout any restrictions suggests there's something else I need to allow outgoing. >I assume you are not > restricting egress from the imail box? > I'm trying to restrict outgoing communication to only the ports that are specifically needed for the server. > turn on block logging on the firewall to see what is being blocked. > Unfortunately it doesn't have such an option. There's a basic log viewable but as far as I can tell, it only records unauthorised incoming connection attempts. - Howard Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/
