Novell GROUPWISE 7 - MULTI-SYSTEM ADMINISTRATION, Manual

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Using Dynamic Internet Links 23
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2.7 Understanding Dynamic Internet Links
The following diagram illustrates the basic process of establishing a dynamic Internet link between
GroupWise systems.
2.7.1 Stage 1: GroupWise Client in the Sending System
The GroupWise client parses the address by breaking it down into parts and attempting to map it to
the
userID.post_office.domain syntax. When the parsing is complete, the client looks in its own
system address book and asks: “Does the parsed address match any listed in the system address
book?”
The address can be typed by the user or obtained from the system address book.
Š
If Yes: The GroupWise client sends this “internal” message to the MTA to be queued for
delivery.
Š
If No: The GroupWise client attempts to resolve the address further. Go to Stage 2 .
2.7.2 Stage 2: GroupWise Client in the Sending System
The GroupWise client checks the Internet domain addressing element listed after an @ sign in the
address syntax and asks: “Is this Internet domain defined in my GroupWise system (that is, is it
internal)?” If there is no Internet domain element at this point, the message is undeliverable.
Š
If Yes: The client looks at the address to determine if all parts are present. If they are present, it
attempts to find a domain element in the address and resolve the address for local delivery. If a
domain element cannot be found, the message is undeliverable.
MTA
1
yes
3
no
2
yes
Domain
Look up
Undeliverable
no
Domain
yes
no
4
no
5
no
6
7
9
10
MTA
yes
Undeliverable
no
DNS
Undeliverable
no
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DNS
no
no
yes
yes
yes
yes
no
MTA
SMTP
Mail
Server
yes
SMTP
DNS
MX
DNS
SRV
TXT
ctp.com
GWMTP
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