Re: [Evolution] Any plugin to snooze/defer an email?

On Thu, 2019-02-28 at 14:53 +0100, Andrea Vai wrote:
AFAIK snoozing is generally a server-side function. 
+1  Both server-side and non-standard [as in there is not standard
deferring method AFAIK].
As I would find the idea interesting, but understand that it's
someway not recommendable, I would greatly appreciate any further
explanation on the matter, if anyone could give some.

Anything scheduled is, or should be, something which is performed by
the server as the server is the only thing which is always there,
always on, always connected.   A client gets closed, powered off, loses
connection, etc... therefore client side scheduling is a dodgy business
and eventually results in a confused, frustrated, or angry user who
blames the application [for what is straight forwardly a bad idea in
the first place].

As it is a [best] server side function the client would need someway of
telling the SMTP server to delay delivery.  No such mechanism exists. 
Additionally, to be useful, the client would need a mechanism to
enumerated scheduled messages and to cancel a scheduled message.  No
such mechanism exists.   These mechanisms would have to be either added
to the SMTP protocol [very unlikely] or shoe-horned into IMAP and thus
be entirely implementation, if not site, specific.  A highly
implementation or site specific feature is not worth the effort of
building into a 'generic' mail client.

Open Source SMTP servers like Postfix have a Hold queue but there is no
way for end-users to interact with that queue as you then have to deal
with all the ensuing AAA issues (Authentication Authorization

Aside: A way does exist to do this, manually.  Compose the message and
save-to-draft, don't send.  Then one can go the Drafts folder, open the
message, and send it at any given time.  I personally use the Drafts
feature frequently.

Adam Tauno Williams, awilliam whitemice org
Multi-Modal Activists Against Auto Dependent Development
resisting the unAmerican socialists of the Motorist hegemony 

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