Hello, I have all the users and passwords in separate files like in the configuration below. I want that a specific user (ex: joe@domain.con) to be able to read mails using imaps only from a specific IP.

All the other users should be able to read email from any IP.

How can I do that?

Thank you

Imap version: #dovecot --version 1.2.12

dovecot.conf:

# 1.2.12: /etc/dovecot/dovecot.conf # OS: Linux 2.6.35-28-server x86_64 Ubuntu 10.10 ext4 base_dir: /var/run/dovecot/ log_path: /var/log/dovecot.log info_log_path: /var/log/dovecot.info ssl_cert_file: /etc/ssl/certs/dovecot1.crt ssl_key_file: /etc/ssl/private/dovecot1.key ssl_cipher_list: ALL:!LOW:!SSLv2 disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable: /usr/lib/dovecot/imap-login login_greeting: IMAP ready. login_processes_count: 7 login_max_processes_count: 84 verbose_proctitle: yes first_valid_uid: 1000 first_valid_gid: 1000 mail_privileged_group: mail mail_location: maildir:/var/spool/vmail/%d/%n fsync_disable: yes mbox_write_locks: fcntl dotlock imap_client_workarounds: delay-newmail netscape-eoh tb-extra-mailbox-sep lda: postmaster_address: postmaster@example.com sendmail_path: /usr/sbin/sendmail auth default: mechanisms: plain login user: mail username_format: %Lu passdb: driver: pam args: session=yes dovecot passdb: driver: passwd-file args: /etc/dovecot/dovecot_passwd userdb: driver: passwd args: blocking=yes userdb: driver: passwd-file args: /etc/dovecot/dovecot_users socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384