o.e.ekker at gmail.com
Fri Feb 21 17:55:58 UTC 2014
On 2/21/2014 6:43 PM, Andrew J. Buehler wrote:
> Other scenarios are possible as well, where there will be multiple
> similar-but-different copies of a given message, with the same
> Message-ID; such messages are distinct, and should be treated as such.
> Reliably distinguishing between them for deduplication purposes, without
> having to essentially cmp every new message against every existing
> message (which seems likely to kill performance), would be - at best - a
> considerable challenge. The obvious approach would be to use a hash of
> the message, but that leaves open the potential for collisions.
Another such scenario is when redirecting a message. A resent message
has the same message-ID as the original message and has an added unique
Resent-Message-ID. Unfortunately Google doesn't store the redirected
message, so you have no means to see to who you redirected it...
PS. Redirecting with Thunderbird is possible with the Mail Redirect
More information about the tb-planning