Hi,

I have problem with receiving mails.

First I used in Postfix in main.cf home_mailbox = Maildir/

but the problem is because if used home_mailbox = Maildir/ returns delivery failed: create maildir file /home/fmaster/Maildir .

and message is not received.

Then I removed home_mailbox = Maildir/ and message is received to: su - fmaster and mail.

I can see message, but now I want to use pop3 in other providers (gmail, outlook, thunderbird) but I got:
Dec 12 08:49:26 mail pop3d: LOGIN FAILED, user=fmaster, ip=[::ffff:209.85.167.38]
Dec 12 08:49:26 mail pop3d: authentication error: Permission denied
mail pop3d: fmaster: chdir(/home/fmaster)


Main.cf:
# See /usr/share/postfix/main.cf.dist for a commented, more complete version


# Debian specific: Specifying a file name will cause the first
# line of that file to be used as the name. The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname

smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no

# appending .domain is the MUA's job.
append_dot_mydomain = no

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h

readme_directory = no

# See http://www.postfix.org/COMPATIBILITY_README.html -- default to 2 on
# fresh installs.
compatibility_level = 2

# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.

smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = mail.mydomain.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = mail.mydomain.com, localhost.localdomain, localhost
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
#home_mailbox =Maildir/
mailbox_command =
virtual_alias_domains = mydomain.com
virtual_alias_maps = hash:/etc/postfix/virtual



I used this tutorial:
https://help.ubuntu.com/community/Po...asicSetupHowto


Please help.

That's a pretty clear error message.
It's telling you that delivery failed and [you need to] create maildir file /home/fmaster/Maildir

That said, Maildir/ is usually a directory containing sub directories that contain email files, one file per email message. (Note the trailing slash...)

I don't know if postfix supports Maildir, but the error message seems to me to say
"You told me to use Maildir/ but there's no /home/user/Maildir directory"

In other words, you have to set up the user environment to match the setting you provide to the MTA...but I don't do postfix, so won't try to help you with HOW to do that.