> On 13 Aug 2019, at 15.37, Jean-Daniel via dovecot <dovecot@dovecot.org> wrote: > > > >> Le 13 août 2019 à 14:16, Sami Ketola via dovecot <dovecot@dovecot.org> a >> écrit : >> >> >> >>> On 13 Aug 2019, at 14.58, James Brown via dovecot <dovecot@dovecot.org> >>> wrote: >>> >>> I’m thinking of getting Solr working with my Dovecot server. Server is new >>> 6-core Mac Mini, mail store of over 1/2 TB. Mailboxes with 100s of >>> thousands of messages. >>> >>> But I’m not sure if: >>> >>> a) it will make enough of a difference and >> >> Choose mailbox format wisely. sdbox preferred unless HFS+ has problems with >> 100s of thousands of small files in same directory. If so, then use mdbox >> with periodic purges. >> >>> >>> b) does Mail.app and other mail clients on Macs or iOS devices perform >>> searches on their local copy of mail or does it just send a search request >>> to the server? >> >> None of the apple devices use IMAP SEARCH. They ALL maintain and use their >> own local search database on the device. Also they seem to refresh the >> database every now and then redownloading all emails. > > Do you have a source for that. My experience is that without server search > support, iOS is very slow at returning result. Moreover, it keep only latest > messages and never download message until you read them.
I'm a apple device user myself. I have couple of iPhones, couple of iPads, couple if MacBooks and Mail.app on any of them is not using IMAP SEARCH. And I cannot find any configuration option to enable it. Only spotlight index is used. On Mac OS Mail.App seems to store the indexed data to: samik@samikworkmac:~>ls -1 Library/Mail/V6/MailData/Envelope\ Index* Library/Mail/V6/MailData/Envelope Index Library/Mail/V6/MailData/Envelope Index-shm Library/Mail/V6/MailData/Envelope Index-wal if those files are removed or spotlight search for mails is disabled Mail.App can't find anything anymore. It does not fall back to IMAP SEARCH. Sami