HCL Domino Ideas Portal
Welcome to the #dominoforever Product Ideas Forum! The place where you can submit product ideas and enhancement request. We encourage you to participate by voting on, commenting on, and creating new ideas. All new ideas will be evaluated by HCL Product Management & Engineering teams, and the next steps will be communicated. While not all submitted ideas will be executed upon, community feedback will play a key role in influencing which ideas are and when they will be implemented.
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I apologize, this is a bad story, the story of a good customer lost. They were the years of Domino 6, 7, 8, 9. Maybe it doesn't make sense to talk about it anymore, but knowing the history helps to avoid repeating similar mistakes in the future. A customer in love with Apple Mail had agreed to use Domino as a mail server. Apple Mail has a wonderful client-side, multi-threaded rules system, whereby a user can create a kind of document system by creating a series of meta-rules. These sorting and search rules put a strain on the IMAP server, as for each incoming message from each user multiple rules can be triggered that move it to different folders, probably even multiple. For example, a company that works with photos can cause movements of 50 or 100mb for each message. Domino is phenomenal for its ability to manage large mailboxes, and this customer in fact had mailboxes that exceeded 50GB, even with active storage. I am no longer updated on the IMAP standard as of January 2024, but if I remember correctly, until the Domino 9 version there was no MOVE command to move a message between folders, and the messages were copied in full and then deleted from the source folder, naturally with all attachments, I seem to remember that it was also necessary to set DAOS to exclude MIME objects (DAOS_AVOID_MIME=1), otherwise it would explode with identical duplicate objects. Deleting and recreating messages in a different folder also caused the messages of all IMAP users who had these rules to appear deleted in message tracking, while they were only moved. The IMAP client command for moving, the multithreaded client behavior, caused unsatisfactory Domino performance, and after a few years of suffering the customer decided to move to another solution. I don't know if now from versions 12 and 14 the MOVE command actually moves messages, but I think this should be evaluated, if it is not a problem already solved.
The UID MOVE command is not causing a lot of workload to the Server. If you still have lots of CPU load then please open a support ticket to investigate your situation.
We have some cutomer that is using Apple Mail for his easy full text search. We have so many problems, i.e. attachments PDF scrambled or not well base64 encoded, full text crazy, CPU for IMAP always at 90%.
IMAP in Domino is a huge problem.
Hire an IMAP guru and rewrite the implementation. I really hate the IMAP implementation in Domino, because using that task corrupts databases. I have power users not using IMAP - Domino is rock solid. If these users start to use IMAP on Domino, after some short time frame, admins need to start fixing issues using fixup, convert, compact and other tools to get rid of strange console and performance errors.