Plugin "mail_crypt" does not work

[Evgeniy Korneechev]

Hi, i have a problem. I sent  test e-mail. 
It is in folder "Sent", but it was not delivered (folder "Inbox" is empty). 
/var/log/dovecot:
.........
lda(mail at example.com): Error: User initialization failed: mail_crypt_plugin: 
mail_crypt_global_public_key: Couldn't parse public key: Unknown key format
.........

Try RSA and EC:
https://wiki2.dovecot.org/Plugins/MailCrypt#RSA_key
https://wiki2.dovecot.org/Plugins/MailCrypt#EC_key

Why "Unknown key format"?

RSA pubkey:
-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC4hfgRDlMJtN9rcV2VGa8gOF1g
xiXHwokRkKmKfr64ZbqAhXzLzP8fSLo8ZEtRzfS3f/EyLRvYL9LHxlxYuSnq2LTW
lbvSj8jcg3ucpA431Pbnq/OVI8WsXhXhZdipGcBDyzWHZw5Dp3I/am+FB96VlfPW
maHO/oKGphXXhXSOXwIDAQAB
-----END PUBLIC KEY-----

EC pubkey:
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEw96p6hvv/BJi9njHyXq05ZrKA3RR
BNFOslljkgv6YUb4de1pln6hTUN69CjMBEB5P3YI7KP8hooozwM8iN/wLQ==
-----END PUBLIC KEY-----


------------------------------------------------
# 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.16 (fed8554)
# OS: Linux 4.4.39-std-def-alt0.M80P.1 x86_64 ALT 8.1 Server 
auth_debug = yes
auth_debug_passwords = yes
auth_default_realm = example.com
auth_mechanisms = plain login
auth_socket_path = /var/run/dovecot/auth-userdb
auth_verbose = yes
auth_verbose_passwords = plain
base_dir = /var/run/dovecot/
debug_log_path = /var/log/dovecot
disable_plaintext_auth = no
first_valid_gid = 502
first_valid_uid = 502
last_valid_gid = 502
last_valid_uid = 502
log_path = /var/log/dovecot
login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c
mail_access_groups = vmail
mail_debug = yes
mail_gid = 502
mail_location = maildir:/%Lh/Maildir/:INDEX=/%Lh/Maildir/
mail_plugins = mail_crypt
mail_privileged_group = vmail
mail_uid = 502
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 imapflags notify
mbox_write_locks = fcntl
namespace {
  list = children
  location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u
  prefix = shared/%%u/
  separator = /
  subscriptions = yes
  type = shared
}
namespace inbox {
  inbox = yes
  location = 
  prefix = 
  separator = /
  type = private
}
passdb {
  driver = pam
}
passdb {
  args = /etc/dovecot/dovecot-ldap.conf.ext
  driver = ldap
}
passdb {
  args = /etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}
plugin {
  mail_crypt_curve = prime256v1
  mail_crypt_global_private_key = </etc/dovecot/eckey/ecprivkey.pem
  mail_crypt_global_public_key = </etc/dovecot/eckey/ecpubkey.pem
  mail_crypt_save_version = 2
  recipient_delimiter = +
  sieve = /etc/dovecot/sieves/default.sieve
  sieve_default = /etc/dovecot/sieves/default.sieve
  sieve_dir = ~/sieve
  sieve_extensions = +notify +imapflags
  sieve_max_redirects = 8
}
protocols = imap pop3 lmtp sieve
service auth-worker {
  user = root
}
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0666
    user = postfix
  }
  unix_listener auth-userdb {
    group = vmail
    mode = 0666
    user = vmail
  }
}
service dict {
  unix_listener dict {
    group = vmail
    mode = 0600
    user = vmail
  }
}
service imap-login {
  inet_listener imap {
    port = 143
  }
}
service imap {
  process_limit = 1024
  vsz_limit = 256 M
}
service lmtp {
  unix_listener lmtp {
    mode = 0666
  }
}
service managesieve-login {
  inet_listener sieve {
    port = 4190
  }
  vsz_limit = 64 M
}
service pop3-login {
  inet_listener pop3 {
    port = 110
  }
}
service pop3 {
  process_limit = 1024
}
ssl_ca = /var/lib/ssl/cert.pem
ssl_cert = </etc/dovecot/dovecot.pem
ssl_key =  # hidden, use -P to show it
userdb {
  driver = passwd
}
userdb {
  args = /etc/dovecot/dovecot-ldap-user.conf.ext
  driver = ldap
}
userdb {
  args = /etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}
protocol lmtp {
  mail_plugins = mail_crypt sieve
}
protocol lda {
  mail_plugins = mail_crypt sieve quota
  plugin {
    quota = dict:user::file:/var/vmail/glu_vrem/%n/.quotausage
  }
}
protocol imap {
  mail_plugins = mail_crypt autocreate quota imap_quota
  plugin {
    autocreate = INBOX
    autocreate2 = Sent
    autocreate3 = Trash
    autocreate4 = Drafts
    autocreate5 = Junk
    autosubscribe = INBOX
    autosubscribe2 = Sent
    autosubscribe3 = Trash
    autosubscribe4 = Drafts
    autosubscribe5 = Junk
    quota = dict:user::file:/var/vmail/glu_vrem/%n/.quotausage
  }
}
protocol sieve {
  mail_max_userip_connections = 10
  managesieve_implementation_string = Dovecot Pigeonhole
  managesieve_logout_format = bytes=%i/%o
  managesieve_max_compile_errors = 5
  managesieve_max_line_length = 65536
}
protocol pop3 {
  pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
  pop3_uidl_format = %08Xu%08Xv
}

-- 
WBR, 
BaseALT/ALTLinux Team