I cannot confirm 3) Especially when you need to send and receive invites to appointments calDAV is by far not a good solution.
As well I have successfully used EAS eg with openXchange (OX) without such a huge battery drain. So I assume it can be solved by adjusting some settings. > Am 22.01.2015 um 18:07 schrieb Martin Simovic <[email protected]>: > > > >> On 22 Jan 2015, at 16:38, [email protected] wrote: >> >> Hi, >> >> when using Activesync the battery of my iPhone drains significantly. The log >> shows a lot of entries with >> >> Change detected, we push the content >> >> tcpdump and verbose logging are showing constantly connections to the IMAP- >> server. Seems like activesync wakes up the iphone permanently due to alleged >> changes (which are in fact not there). >> >> I tried different iOs devices, different servers (debian, Ubuntu), the latest >> nighty build of SOGo, nginx and apache, all without success. That makes SOGo >> Activesync unusable for me. >> >> Any ideas concerning the reason? > > There have been quite a lot of suggestions regarding this on mailing list, > try searching the Archives. > > My advice would be: > > 1. Disable Push and use Fetch as email retrieval method (every 15 min). This > should improve your battery life dramatically > 2. There has been someone on mailing list mentioning that if there is another > device behind the same NAT taking to your IMAP server (e.g. Thunderbird) at > the the same time as your EAS client it’ll fool the server into the endless > loop (some can confirm this?) > 3. Don’t use EAS on iOS. Since iOS has built in IMAP, CalDAV and CardDAV > support I see no reason to use EAS at all (other then ease of initial > configuration). You can achieve the same results with separate mail, calendar > and contacts account, EAS on iOS does not bring any advantage over that > (quite the opposite). > > Best Regards > Martin.-- > [email protected] > https://inverse.ca/sogo/lists -- [email protected] https://inverse.ca/sogo/lists
