Looks like this mail client has problems with the archive namespace[1], I assume I have nothing strange in there because other clients just issue around ~50 cmds. So I guess this is just bad programming of some new flashy trendy tool someone has downloaded?
The raw in log has nr 34212 LIST "" 35190 SELECT Archive Like this: 350 SELECT Archive 2351 LIST "" "*" 2352 SELECT Archive 2353 LIST "" "*" 2354 SELECT Archive 2355 LIST "" "*" 2356 SELECT Archive 2357 LIST "" "*" 2358 SELECT Archive 2359 LIST "" "*" 2360 SELECT Archive 2361 LIST "" "*" 2362 SELECT Archive 2363 LIST "" "*" 2364 SELECT Archive 2365 LIST "" "*" 2366 SELECT Archive 2367 LIST "" "*" 2368 SELECT Archive 2369 LIST "" "*" 2370 SELECT Archive 2371 LIST "" "*" 2372 SELECT Archive 2373 LIST "" "*" 2374 SELECT Archive 2375 LIST "" "*" 2376 SELECT Archive 2377 LIST "" "*" 2378 SELECT Archive 2379 LIST "" "*" 2380 SELECT Archive 2381 LIST "" "*" 2382 SELECT Archive 2383 LIST "" "*" 2384 SELECT Archive 2385 LIST "" "*" 2386 SELECT Archive 2387 LIST "" "*" 2388 SELECT Archive 2389 LIST "" "*" 2390 SELECT Archive 2391 LIST "" "*" 2392 SELECT Archive 2393 LIST "" "*" 2394 SELECT Archive 2395 LIST "" "*" 2396 SELECT Archive 2397 LIST "" "*" 2398 SELECT Archive 2399 LIST "" "*" 2400 SELECT Archive 2401 LIST "" "*" 2402 SELECT Archive 2403 LIST "" "*" 2404 SELECT Archive [1] namespace 4archives { disabled = no hidden = no ignore_on_failure = no inbox = no list = yes location = mdbox:/home/mail-archive/%u/Archive/:CONTROL=/home/mail-archive/%u/Archi ve/control:INDEX=/home/archiveindex/%u/index ..(more mailboxes).. mailbox Archive { auto = create autoexpunge = 0 autoexpunge_max_mails = 0 comment = driver = special_use = \Archive } mailbox "Archived mail" { auto = no autoexpunge = 0 autoexpunge_max_mails = 0 comment = driver = special_use = \Archive } mailbox "Archived messages" { auto = no autoexpunge = 0 autoexpunge_max_mails = 0 comment = driver = special_use = \Archive } ..(more mailboxes).. order = 0 prefix = separator = / subscriptions = yes type = private }