Thanks in advance for any help on this issue. I run Imail (6.x) along with Trend Micro's VirusWall and eManager, on a single Win2K server. I host 3 small email domains and except for an infrequent need to reboot to correct an unexplained stop of the SMTP service, my system is very solid and dependable. The use of Trend's VirusWall and eManager have allowed me to effectively block undesirable attachments, screen for virus infections and block spam (although I must manually specify what to block). All incoming mail is received and processed by Trend on port 25, then forwarded to Imail on a different specified port. All my users access mail via POP access, unless they are traveling, when they use Web access.
My problem/question concerns mail relay. I know that the only secure settings for Imail are No Relay, with clients using smtp authentication, or Relay for Specified Addresses, but since incoming mail is first received by the VirusWall I don't think smtp authorization will work correctly. Also, my understanding is that when in-coming mail is sent from Trend to Imail, it all appears to come from the local machine, thereby eliminating Imail's ability to distinguish the true originating IP address. Trend's VirusWall does not appear to provide such options; providing only the option to only accept incoming mail addressed to specified domains. This setting apparently causes my mail server to be seen as an open relay because it will accept mail sent to bogus@"my domain". Does anyone else use this type of setup and have you found a way to close this relay hole? I hope that I have provided enough information to understand my situation. I hope to find an answer that does not require dumping the Trend software because it has been very solid and useful. Although it is not adequate to control the spam, it is solid for the attachment blocking and virus scanning. Thanks in advance for any/all comments and suggestions. Jim James Chandler Region E Development Corporation Western Piedmont Council of Governments PO Box 9026 Hickory, NC 28603 828.322.9191 x215 828.485.4215 828.322.5991 FAX 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/
