'X-MailScanner-ID' header?

[David Lee]

Having just done some MS upgrades I saw that emails had gained an extra
header that I hadn't seen before, namely 'X-MailScanner-ID'.

Looking at the source code, it seems to have appeared somewhere between
versions 4.61.7 and 4.66.5 .  But there seems to be no mention of it in
"MailScanner.conf".  Nor did I see it in the ChangeLog.  (Or did I miss
the description?)

Any ideas what this is?  And why it seems to be added unconditionally?

Also, shouldn't it be tailorable?  If a long-haul email passes through two
or more MS sites (i.e. different "%org-name%") and each perhaps with two
or more MS installations within it, might it not be best to let it be
tailorable (as most other 'X-MailScanner' variables), defaulting to (say)
'X-%org-name%-MailScanner-ID'?

Julian: Could you briefly fill in the background, please?  Thanks.


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