Hello,

I have a mailbox with an ungodly number of small messages in it. When new messages are delivered lmtp kicks up an error like the one below. I tried raising the vsz_limit for lmtp but that didn't see to help. Any ideas (besides deleting 400k messages)? Thanks!

dovecot: lmtp(6068, user@example.com): Error: mmap() failed with file /home/vmail/domains/example.com/user/Maildir/dovecot.index.cache: Cannot allocate memory

ls -lah dovecot.index.cache

-rw------- 1 vmail vmail 128M Jul 29 20:16 dovecot.index.cache

doveadm mailbox status -u user@example.com all inbox

INBOX messages=434118 recent=59848 uidnext=434119 uidvalidity=1293568548 unseen=432625 highestmodseq=14023 vsize=1329486283 guid=f8d48232244a1a4dfe2e0000cb0ad7e0

doveconf -n

... default_vsz_limit = 256 M service lmtp { inet_listener lmtp { port = 24 } vsz_limit = 256 M }