Failed to send mail: SMTP command failed

7 posts / 0 new
Topic locked
Last post
#1 Wed, 03/27/2019 - 11:47
vaubanson

Failed to send mail: SMTP command failed

Hello everyone i installed virtualmin but when i try to send an email using usermin i always have an error that tells me Failed to send mail: SMTP command failed: I need help it's been a week since I'm looking for a solution that can not be found.

Wed, 03/27/2019 - 11:57
Welshman
Welshman's picture

Hello my dear friend, bit more info is probably needed but firstly could you see what port your using for smtp, if 25 try changing it to 587 and try again.

Really hope this solves your problem.

Kind regards.

Welshman.

Chaos Reigns Within, Reflect, Repent and Reboot, Order Shall Return.

Wed, 03/27/2019 - 12:22
Welshman
Welshman's picture

https://www.virtualmin.com/node/65252#comment-810416

Is that post related btw?

Kind regards,

Welshman.

Chaos Reigns Within, Reflect, Repent and Reboot, Order Shall Return.

Wed, 03/27/2019 - 12:42
vaubanson

Hello Welshman, I am a novice in the administration of a server. could you tell me where I need to change the port. thank you

Aime vaubanson

Wed, 03/27/2019 - 12:45
Welshman
Welshman's picture

Bit confused, your other post says fixed?

What email client are you using, have you tried other than using Usermin.

Kind regards,

Welshman.

Chaos Reigns Within, Reflect, Repent and Reboot, Order Shall Return.

Thu, 03/28/2019 - 04:15
vaubanson

Hello Welshman. no it's not closed yet. I used roundcube too but I have the following error: SMTP error (250): failure during authentication. when i do postconf -n here's what i have in the console:

postconf: warning: /etc/postfix/master.cf: undefined parameter: mua_sender_restrictions postconf: warning: /etc/postfix/master.cf: undefined parameter: mua_client_restrictions postconf: warning: /etc/postfix/master.cf: undefined parameter: mua_helo_restrictions postconf: warning: /etc/postfix/master.cf: undefined parameter: mua_sender_restrictions postconf: warning: /etc/postfix/master.cf: undefined parameter: mua_client_restrictions postconf: warning: /etc/postfix/master.cf: undefined parameter: mua_helo_restrictions alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no home_mailbox = Maildir/ inet_interfaces = all inet_protocols = all mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 milter_default_action = accept milter_protocol = 2 mydestination = $myhostname, radiotokpa.info myhostname = gracewallaceofficiel.com mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 myorigin = /etc/mailname non_smtpd_milters = inet:localhost:8891 readme_directory = no recipient_delimiter = + relayhost = smtp_tls_security_level = dane smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_milters = inet:localhost:8891 smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination smtpd_tls_CAfile = /etc/postfix/postfix.ca.pem smtpd_tls_cert_file = /etc/postfix/postfix.cert.pem smtpd_tls_key_file = /etc/postfix/postfix.key.pem smtpd_tls_security_level = may smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes virtual_alias_maps = hash:/etc/postfix/virtual

Aime vaubanson

Thu, 03/28/2019 - 08:24
Welshman
Welshman's picture

Hi, have you tried setting up the account in a client like Outlook, Thunderbird etc and if it works?

If it does you might want to look here https://www.virtualmin.com/node/65253

What did you do anyway at the time when it stopped working?

Also in the Postfix config area / SMTP Authentication And Encryption mine looks like this ...

https://i.postimg.cc/HWFX0xwG/pf-smtp.png

Regards.

Chaos Reigns Within, Reflect, Repent and Reboot, Order Shall Return.

Topic locked