October 2007
Intermediate to advanced
1308 pages
161h 13m
English
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${quarantine}
The reason why envelope was quarantined V8.13 and later
V8.13 introduced queue quarantining (Queue Quarantining on page 438), the process by which envelopes in the queue are marked as being ineligible for delivery. Such quarantined envelopes may then be reviewed manually or automatically.
When a message is quarantined, the reason it was
quarantined is stored as the value of this ${quarantine} macro.
When it is later read from the queue, the value of
the queue file’s q line (The qf file’s quarantine reason: q
line on page 444) is again copied into this ${quarantine}
macro.
Note that the ${quarantine} macro can also be used to
detect whether a message has been
quarantined.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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