[MU] Tmail is loading GB of mails

[chibenwa]

Description

Given I recently deleted 1000 email,

I retore them

On MU platform under customer request we lifter the max nomber of restored email limitation. We only kept the 15 day horizon.

The result: TMail uses GBs of memory as it downloads aggressively email preview.

How to reproduce

Restore mails on ges.govmu.org

Please note that migrated users are also impacted.

How to fix

In Web it would be nice we download previews of email received by WS and save them in cache if they concern the currently opened mailbox?

[hoangdat]

In Web it would be nice we download previews of email received by WS and save them in cache if they concern the currently opened mailbox?

1. for resynch, all are preview not full of email
2. we are depending in WS, if we not cache all thing from WS, for sure a ton of issues relate to cache inconsistent.
   Fx:
   1. You cache folder A
   2. You still open folder B
   3. Something change in folder A come.
   4. Open folder A again, (no /change + /get + /get anymore) so folder A will show the outdated emails and no chance to resync, because state is newer state