Hi,

I’ve setup my server __user__nd mail sending/receiving is all working without issue. However, a cron script that cleans up the Junk folder and runs:

doveadm expunge -A mailbox Junk savedbefore 60d

gives out the following error:

doveadm(__user__@example.com): Error: Namespace 'Virtual.': Unknown mail storage driver virtual

I don’t know if I have a configuration issue or if I have to load the virtual plugin at some other point in the config?

I would appreciate any help.

This is the output with debug enabled, and further below is my dovecot -n output (I’ve changed the user name to __user__ and the domain to example.com)

Debug: Loading modules from directory: /usr/lib/dovecot/modules/doveadm Debug: Skipping module doveadm_acl_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_acl_plugin.so: undefined symbol: acl_user_module (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_expire_plugin.so: undefined symbol: expire_set_deinit (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_quota_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_quota_plugin.so: undefined symbol: quota_user_module (this is usually intentional, so just ignore this message) Debug: Module loaded: /usr/lib/dovecot/modules/doveadm/lib10_doveadm_sieve_plugin.so Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_lucene_plugin.so: undefined symbol: lucene_index_iter_deinit (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_fts_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_plugin.so: undefined symbol: fts_user_get_language_list (this is usually intentional, so just ignore this message) Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen() failed: /usr/lib/dovecot/modules/doveadm/libdoveadm_mail_crypt_plugin.so: undefined symbol: mail_crypt_box_get_pvt_digests (this is usually intentional, so just ignore this message) Debug: auth-master: userdb list: Started listing users (user_mask=) Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Connecting Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Client connected (fd=10) Debug: auth-master: userdb list: Returned username: __user__@example.com doveadm(__user__@example.com)<1068593><>: Debug: auth-master: userdb lookup(__user__@example.com): Started userdb lookup doveadm(__user__@example.com)<1068593><>: Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Connecting doveadm(__user__@example.com)<1068593><>: Debug: auth-master: conn unix:/var/run/dovecot/auth-userdb: Client connected (fd=12) doveadm(__user__@example.com)<1068593><>: Debug: auth-master: userdb lookup(__user__@example.com): auth USER input: __user__@example.com maildir=example.com/__user__/ home=/var/mail/vhosts/example.com/__user__ uid=5000 gid=5000 doveadm(__user__@example.com)<1068593><>: Debug: auth-master: userdb lookup(__user__@example.com): Finished userdb lookup (username=__user__@example.com maildir=example.com/__user__/ home=/var/mail/vhosts/example.com/__user__ uid=5000 gid=5000) doveadm(__user__@example.com)<1068593><>: Debug: Added userdb setting: plugin/maildir=example.com/__user__/ doveadm(__user__@example.com): Debug: Effective uid=5000, gid=5000, home=/var/mail/vhosts/example.com/__user__ doveadm(__user__@example.com): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/var/mail/vhosts/example.com/__user__/Maildir doveadm(__user__@example.com): Debug: maildir++: root=/var/mail/vhosts/example.com/__user__/Maildir, index=, indexpvt=, control=, inbox=/var/mail/vhosts/example.com/__user__/Maildir, alt= doveadm(__user__@example.com): Debug: Namespace virtual: type=private, prefix=Virtual., sep=., inbox=no, hidden=no, list=yes, subscriptions=yes location=virtual:/var/mail/virtual:INDEX=/var/mail/vhosts/example.com/__user__/virtual doveadm(__user__@example.com): Error: Namespace 'Virtual.': Unknown mail storage driver virtual

dovecot -n

2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf

Pigeonhole version 0.5.7.2 ()

OS: Linux 5.16.3-x86_64-linode152 x86_64 Ubuntu 20.04.4 LTS

Hostname: bender.example.com

auth_mechanisms = plain login auth_username_format = %u mail_location = maildir:%h/Maildir mail_privileged_group = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext namespace inbox { inbox = yes location = mailbox Archive { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe autoexpunge = 30 days special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { auto = subscribe autoexpunge = 30 days special_use = \Trash } prefix = } namespace virtual { list = yes location = virtual:/var/mail/virtual:INDEX=/var/mail/vhosts/%d/%n/virtual mailbox All { auto = subscribe comment = All my messages special_use = \All } mailbox Flagged { auto = subscribe comment = All my flagged messages special_use = \Flagged } prefix = Virtual. separator = . subscriptions = yes } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { sieve = file:%h/sieve;active=%h/dovecot.sieve sieve_before = /etc/dovecot/sieve/ } postmaster_address = postmaster at example.com protocols = imap lmtp sieve service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = dovecot } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 ssl = yes } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } service managesieve-login { inet_listener sieve { address = localhost port = 4190 } } service stats { unix_listener stats-reader { group = www-data mode = 0660 user = www-data } unix_listener stats-writer { group = www-data mode = 0660 user = www-data } } ssl = required ssl_cert = </etc/dovecot/private/dovecot.pem ssl_client_ca_dir = /etc/ssl/certs ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_min_protocol = TLSv1.2 ssl_prefer_server_ciphers = yes userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } userdb { args = uid=vmail gid=vmail home=/var/mail/vhosts/%d/%n driver = static } protocol lmtp { mail_plugins = " sieve virtual" postmaster_address = postmaster@example.com } protocol lda { mail_plugins = " virtual" } protocol imap { mail_plugins = " virtual" } protocol sieve { mail_plugins = virtual }