Smtp Connection - F-SECURE INTERNET GATEKEEPER FOR LINUX 4.01 Administrator's Manual

5.1.2 SMTP Connection

• Without virus scanning
The e-mail client sends e-mail to mail servers on the Internet through an SMTP server for
outbound e-mail.
• With virus scanning
When virus scanning is used, Internet Gatekeeper stands between the client and mail server and
operates as the SMTP server for the e-mail client. The client connects to the SMTP server through
Internet Gatekeeper. The client sends outbound e-mail to mail servers on the Internet. Internet
Gatekeeper forwards the mail through the outbound mail server.
SMTP Connection example
Without virus scanning
M ail server (mail2)
To: foo@mail2
SM TP server settings: mail1
M ail server (mail3)
M ail server (mail1)
To: foo@mail3
Client
F-Secure Internet Gatekeeper for Linux/Administrator's Guide
With virus scanning
M ail server (mail2)
To: foo@mail2
Client
SM TP server settings: fsigk
M ail server (mail3)
M ail server (mail1)
Internet Gatekeeper
(fsigk)
Parent server: mail1
To: foo@mail3
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