Re: Dovecot 2.4 and E-Mail Address as Login Setting

18 Oct 2026

      Jack,
Here is my confifg pur dovecot -n and the %n does not work when enabled as it thows No Authentication Error:
2.4.2 (0962ed2104): /etc/dovecot/dovecot.conf
Pigeonhole version 2.4.2 (767418c3)
OS: Linux 7.0.0-38-generic x86_64 Ubuntu 26.04.1 LTS
Hostname: capricorn
9 default setting changes since version 2.4.0
dovecot_config_version = 2.4.0
auth_mechanisms = plain login
auth_username_format = %n
dovecot_storage_version = 2.4.0
first_valid_uid = 1000
fts_autoindex = yes
fts_autoindex_max_recent_msgs = 999
fts_search_add_missing = yes
last_valid_uid = 65535
listen = * ::
mail_driver = mbox
mail_home = /home/%{user | username}
mail_inbox_path = /var/mail/%{user}
mail_path = %{home}/mail
mail_privileged_group = mail
protocols {
imap = yes
pop3 = yes
}
passdb pam {
}
userdb passwd {
}
userdb passwd-file {
auth_username_format = %{user|lower}
passwd_file_path = /etc/passwd
driver = passwd-file
fields {
home = /var/vmail/%{user}
name = %{user|lower}
user = %{user|lower}
}
skip = found
}
namespace inbox {
inbox = yes
mailbox Drafts {
special_use = "\\Drafts"
}
mailbox Junk {
special_use = "\\Junk"
}
mailbox Trash {
special_use = "\\Trash"
}
mailbox Sent {
special_use = "\\Sent"
}
mailbox "Sent Messages" {
special_use = "\\Sent"
}
}
service imap-login {
inet_listener imap {
port = 143
}
inet_listener imaps {
port = 993
ssl = yes
}
}
service pop3-login {
inet_listener pop3 {
port = 110
}
inet_listener pop3s {
port = 995
ssl = yes
}
}
service submission-login {
inet_listener submission {
port = 587
}
inet_listener submissions {
port = 465
}
}
service lmtp {
unix_listener lmtp {
}
}
service imap {
}
service pop3 {
}
service submission {
}
service auth {
unix_listener auth-userdb {
}
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0666
user = postfix
}
}
service auth-worker {
}
service dict {
unix_listener dict {
}
}
ssl_server {
cert_file = /etc/letsencrypt/live/imap.cryptodan.net/cert.pem
key_file = /etc/letsencrypt/live/imap.cryptodan.net/privkey.pem
}
Very Respectfully,
Daniel Reinhardt
Sent with Proton Mail secure email.
On Saturday, October 17th, 2026 at 11:11 PM, Jack Raats via dovecot <dovecot@dovecot.org> wrote:
...
Just use
auth_username_format = %n
in your config
Gr.,
Jack
Op 17-10-2026 om 23:32 schreef Daniel Reinhardt via dovecot:
...
Horst,
I am using the /etc/passwd file for usernames so its not a fancy setup using anything like SQL.
Very Respectfully,
Daniel Reinhardt
Sent with Proton Mail secure email.
On Saturday, October 17th, 2026 at 9:29 PM, Horst B Simon<horst.simon2@icloud.com> wrote:
...
It depends where you keep your users. I am using on one server sqlite for the usernames and on another mariadb  and the username query is in the “<path>/dovecot/conf.d/auth-sql.conf.ext“ and the users are created using postfixadmin.
Horst
...
On 18 Oct 2026, at 08:09, Daniel Reinhardt via dovecot<dovecot@dovecot.org> wrote:
   All,
I am running Dovecot 2.4 on a single server, and I am wondering where I
can set it to use the full email address as the login name.
I am running Ubuntu 26.04 and its fully updated.  I own the server, and
the domain.  Let me know what information you need to assist me.
Very Respectfully,
Daniel Reinhardt
Sent with [1]Proton Mail secure email.
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To unsubscribe send an email todovecot-leave@dovecot.org   Just use
auth_username_format = %n
in your config
Gr.,
Jack
Op 17-10-2026 om 23:32 schreef Daniel Reinhardt via dovecot:
Horst,
I am using the /etc/passwd file for usernames so its not a fancy setup using anything like SQL.
Very Respectfully,
Daniel Reinhardt
Sent with Proton Mail secure email.
On Saturday, October 17th, 2026 at 9:29 PM, Horst B Simon [1]<horst.simon2@icloud.com> wrote:
It depends where you keep your users. I am using on one server sqlite for the usernames and on another mariadb  and the username query is in the "<path>/dovecot/conf.d/auth-sql.conf.ext" and the users are created using postfixadmin.
Horst
On 18 Oct 2026, at 08:09, Daniel Reinhardt via dovecot [2]<dovecot@dovecot.org> wrote:
All,
I am running Dovecot 2.4 on a single server, and I am wondering where I
can set it to use the full email address as the login name.
I am running Ubuntu 26.04 and its fully updated.  I own the server, and
the domain.  Let me know what information you need to assist me.
Very Respectfully,
Daniel Reinhardt
Sent with [1]Proton Mail secure email.
References
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To unsubscribe send an email to [5]dovecot-leave@dovecot.org

dovecot mailing list -- [6]dovecot@dovecot.org
To unsubscribe send an email to [7]dovecot-leave@dovecot.org
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