I've wanted to migrate away from our current IMAP server software to Dovecot so some time. Dovecot is a great IMAP server and was built from the ground up to be secure and fast. It has several features which make it significantly faster that the old server as well as having a plugin system that enables advanced features like full text indexed searches.
Under most circumstances the migration to the new server is seamless but not without some caveats. When you first log into the new server, your mailboxes metadata is converted from the old format. This will preserve any user supplied tags, and all message status flags. Under most circumstances clients will completely resync with the new IMAP servers.
To help test, just update all of your clients to use 'imapd.sonic.net' and then accept the SSL key validation error. (imapd.sonic.net only a temporary name for the new cluster.)
No need to let us know if everything works, but please do let us know about any issues. Under no circumstances should testing cause any mail to get lost. If your client doesn't show all of your mail, restart it. If it still doesn't show all of your mail, try triggering a full resync.
Please note: logging into the old imap servers, including using our webmail, after migrating to the new sever may lead to index corruption in dovecot and isn't recommended at this time. Dovecot should recover from it automatically but it may cause some mail to go "missing" until the index is rebuilt.
Fusion Voicemail Users - if you read your voicemail in your mail client via IMAP, the new servers aren't keeping MWI in sync (stutter dial tone and/or message waiting light) at this time. If it gets stuck on and you want to turn it off, simply log into the your voicemail from your phone.
Under most circumstances the migration to the new server is seamless but not without some caveats. When you first log into the new server, your mailboxes metadata is converted from the old format. This will preserve any user supplied tags, and all message status flags. Under most circumstances clients will completely resync with the new IMAP servers.
To help test, just update all of your clients to use 'imapd.sonic.net' and then accept the SSL key validation error. (imapd.sonic.net only a temporary name for the new cluster.)
No need to let us know if everything works, but please do let us know about any issues. Under no circumstances should testing cause any mail to get lost. If your client doesn't show all of your mail, restart it. If it still doesn't show all of your mail, try triggering a full resync.
Please note: logging into the old imap servers, including using our webmail, after migrating to the new sever may lead to index corruption in dovecot and isn't recommended at this time. Dovecot should recover from it automatically but it may cause some mail to go "missing" until the index is rebuilt.
Fusion Voicemail Users - if you read your voicemail in your mail client via IMAP, the new servers aren't keeping MWI in sync (stutter dial tone and/or message waiting light) at this time. If it gets stuck on and you want to turn it off, simply log into the your voicemail from your phone.
