As it was discussed on GitHub our default settings (https://github.com/tigase/siskin-im/issues/92) and a way to suggest enabling features are suboptimal. It would be good to move to enable Push to the global scope (so that user would enable it once for all accounts which support these features). It would be also good to replace MAM options:

• enabled
• synchronization enabled
• synchronization range (message from X hours/days)

with by having an on/off feature on the account level and only asking the user during adding the account how many messages he wishes to initially fetch.

Having MAM enabled would automatically trigger MAM synchronization from the last message available in the local storage.

Additionally, we should implement fetch more feature, to automatically try to fetch older messages if we are at the begining of our local storage. (some flag marking that there is nothing more to fetch if we know that we are at the end of the archive for this conversation would be nice).