Hi, does anyone have any tips or recommendations on my question involving support for the new Outlook?
How do I configure dovecot to support both "username" and "[1][email protected]"? Thanks, Alex On Mon, Aug 4, 2025 at 12:18PM Alex <[2][email protected]> wrote: Hi, I'm using dovecot-2.3.21 on fedora40 and have configured it to use only usernames without domain when logging in. Now apparently the new Outlook (1.2025.617.000) no longer supports the ability to change username for IMAP. Now what? We have other users who are using older versions of Outlook and Thunderbird and webmail that still support this login method. How can I support both? Here is my dovecot info. # 2.3.21.1 (d492236fa0): /etc/dovecot/dovecot.conf # OS: Linux 6.12.6-100.fc40.x86_64 x86_64 Fedora release 40 (Forty) btrfs auth_mechanisms = plain login default_client_limit = 3000 default_process_limit = 4000 default_vsz_limit = 1 G dict { sql = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes listen = 209.216.XXX.60, 127.0.0.1 mail_gid = users mail_location = maildir:/home/%u/Maildir mail_max_userip_connections = 100 mail_plugins = " listescape last_login" mail_privileged_group = mail namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { last_login_dict = proxy::sql last_login_key = # hidden, use -P to show it last_login_precision = ms sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = pop3 imap lmtp service anvil { client_limit = 12003 } service auth-worker { client_limit = 20000 } service auth { client_limit = 20000 unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service imap-login { inet_listener imaps { port = 993 ssl = yes } process_min_avail = 20 service_count = 0 vsz_limit = 1 G } service lmtp { executable = lmtp -L inet_listener lmtp { address = 127.0.0.1 port = 24 } process_min_avail = 5 unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } } ssl_ca = </var/www/example.com-443/ssl/DigiCertCA-2022.crt ssl_cert = </var/www/example.com-443/ssl/example-combined-2025.crt ssl_key = # hidden, use -P to show it userdb { driver = passwd } protocol lda { info_log_path = /var/log/dovecot-lda.log log_path = /var/log/dovecot-lda-errors.log } protocol imap { mail_max_userip_connections = 100 } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } local_name [3]example.com { ssl_cert = </var/www/example.com-443/ssl/example-combined-2025.crt ssl_key = # hidden, use -P to show it } local_name [4]users.example1.com { ssl_cert = </etc/letsencrypt/example1-fullchain.pem ssl_key = # hidden, use -P to show it } We're also using postfix to support this basic sasl username when sending. smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes smtpd_sasl_local_domain = $myhostname broken_sasl_auth_clients = yes smtpd_sasl_authenticated_header = yes smtpd_sasl_security_options = noanonymous, noplaintext smtpd_sasl_tls_security_options = noanonymous References Visible links 1. mailto:[email protected] 2. mailto:[email protected] 3. http://example.com/ 4. http://users.example1.com/
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