He configurado exitosamente mi servidor de correo electrónico con el droplet digital-ocean ubuntu 18.04 LEMP y todo funciona bien hasta ahora. Puedo enviar y recibir correo electrónico y también configurarlo correctamente con el cliente de correo web Round-Cube. Utilicé Mailgun como retransmisión SMTP.
Pero cuando intenté conectarme a un buzón de mi servidor de correo a través de Outlook o Thunderbird, seguía diciendo que el cliente no pudo encontrar la configuración de la cuenta. Intenté hacer la configuración manualmente y sigue dándome el mismo error.
Cualquier ayuda o sugerencia sería apreciada.
Salida de postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
compatibility_level = 2
dovecot_destination_recipient_limit = 1
inet_interfaces = all
inet_protocols = all
mailbox_size_limit = 0
mydestination = mail.myservername.com, localhost.localdomain, localhost
myhostname = myservername.com
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
readme_directory = no
recipient_delimiter = +
relayhost = [smtp.mailgun.org]:587
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = static:[email protected]:999999999-000000000000-9999999
smtp_sasl_security_options = noanonymous
smtp_tls_note_starttls_offer = yes
smtp_tls_security_level = may
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
smtpd_recipient_restrictions = permit_sasl_authenticated permit_mynetworks reject_unauth_destination
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_security_level = may
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtpd_use_tls = yes
virtual_mailbox_domains = myservername.com
virtual_transport = dovecot
Salida de dovecot -n
mail_location = maildir:/var/mail/vmail/%d/%n/Maildir
mail_privileged_group = mail
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
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 {
args = /etc/dovecot/dovecot-sql.conf.ext
driver = sql
}
plugin {
sieve = file:~/sieve;active=~/.dovecot.sieve
}
protocols = " imap sieve"
service auth {
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0660
user = postfix
}
unix_listener auth-userdb {
mode = 0666
user = vmail
}
user = dovecot
}
service imap-login {
inet_listener imap {
port = 143
}
}
service imap {
process_limit = 1024
}
ssl_cert = </etc/dovecot/private/dovecot.pem
ssl_client_ca_dir = /etc/ssl/certs
ssl_key = # hidden, use -P to show it
userdb {
args = uid=vmail gid=vmail home=/var/mail/vmail/%d/%n
driver = static
}
protocol lda {
mail_plugins = " sieve"
}
sudo nmap your-server-ipda el siguiente resultado:
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
443/tcp closed https
587/tcp open submission