Hello,
I am tasked with deleting certain headers from emails post-delivery, but prior to long term archival.
As in: The emails arrived a while ago and any value for of the headers is gone.
Lets say I need to delete all the X-ms and X-Microsoft headers from emails that were received 6 months and more ago.
I can do a find ... -type f -name '.*' to find these emails and I can throw some python script on every file to edit the
headers.
But, obviously this breaks cyrus' checksumming.
If I do a reconstruct -r -f -I -G on the mailbox, it will find the changed emails, but will record them as new (move
them to a new "id"), therefore marking them as unread for everyone.
The question is: Is there a way to fix the checksum (and other metadata) in-place instead?
If I remember correctly, like 10 years ago reconstruct was able to do exactly that.
How would I do that nowadays?
br,
Jan
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