Hi, start with what is described here: http://www.sogo.nu/files/docs/SOGo%20Installation%20Guide.pdf Microsoft Enterprise ActiveSync Tuning - Page 53
Set SOGoMaximumSyncResponseSize = 512 Compare symptom with following bugs: 0003294: IMAP LIST loop while ActiveSync a large (many folders) mailbox 0003293: SIGINT interrupt during ActiveSync synchronization and memory leak Recreate the account with following debug parameters set: SOGoEASDebugEnabled = YES ImapDebugEnabled = YES sogo.log should then give enough infos to analyze the problem. Regards, Thomas -- users@sogo.nu https://inverse.ca/sogo/lists