I use a virtual server from the German Provider Hosteurope. I have no MTA Postfix on the virtual server. The installation was very simple. After ./launcher bootstrap app and ./launcher start app the app starts.
I start the ./discourse-doctor and I get the following message:
If you do not receive the message, check your SPAM folder
or test again using a service like http://www.mail-tester.com/.
If the message is not delivered it is not a problem with Discourse.
Check the SMTP server logs to see why it failed to deliver the message.
Replacing: SMTP_PASSWORD
Replacing: LETSENCRYPT_ACCOUNT_EMAIL
Replacing: DEVELOPER_EMAILS
Replacing: DISCOURSE_DB_PASSWORD
Yes, I send the Email to mail-tester. It seems that the SMTP server accepted the email but not deliver to the receiver?
==================== MAIL TEST ====================
For a robust test, get an address from http://www.mail-tester.com/
Or just send a test message to yourself.
Email address for mail test? ('n' to skip) []: test-2v7z63ww6@srv1.mail-tester.com
Sending mail to test-2v7z63ww6@srv1.mail-tester.com. . .
Testing sending to test-2v7z63ww6@srv1.mail-tester.com using wp10750459.mailout.server-he.de:25.
SMTP server connection successful.
Sending to test-2v7z63ww6@srv1.mail-tester.com. . .
Mail accepted by SMTP server.
If you do not receive the message, check your SPAM folder
or test again using a service like http://www.mail-tester.com/.
If the message is not delivered it is not a problem with Discourse.
Check the SMTP server logs to see why it failed to deliver the message.
Replacing: SMTP_PASSWORD
Replacing: LETSENCRYPT_ACCOUNT_EMAIL
Replacing: DEVELOPER_EMAILS
Replacing: DISCOURSE_DB_PASSWORD
Replacing: Sending mail to
==================== DONE! ====================
The question is, do I need to install a mail server on the virtual server? think I don’t need a Mail server on the virtual server. I want to use the smtp server from the provider. The ports are closed. Witch Mail server should I install?
telnet 178.77.102.5 25
Trying 178.77.102.5...
telnet: Unable to connect to remote host: Connection refused
nmap -PN -p 25,110,143,465,587,993,995 178.77.102.5
Starting Nmap 7.01 ( https://nmap.org ) at 2021-01-07 16:45 CET
Nmap scan report for lvps178-77-102-5.dedicated.hosteurope.de (178.77.102.5)
Host is up (0.0058s latency).
PORT STATE SERVICE
25/tcp closed smtp
110/tcp closed pop3
143/tcp closed imap
465/tcp closed smtps
587/tcp closed submission
993/tcp closed imaps
995/tcp closed pop3s
Nmap done: 1 IP address (1 host up) scanned in 0.23 seconds
[root@lvps178-77-102-5 ~]# yum list installed | grep mail
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
fetchmail.x86_64 6.3.24-7.el7 installed
mailcap.noarch 2.1.41-2.el7 installed
mailx.x86_64 12.5-19.el7 installed
procmail.x86_64 3.22-36.el7_4.1 installed
sendmail.x86_64 8.14.7-6.el7 installed
sendmail-cf.noarch 8.14.7-6.el7 installed
sendmail-doc.noarch 8.14.7-6.el7 installed
[root@lvps178-77-102-5 ~]#
[root@lvps178-77-102-5 ~]# ss -tanup
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port
tcp LISTEN 0 128 *:22 *:* users:(("sshd",pid=396,fd=3))
tcp LISTEN 0 128 *:3000 *:* users:(("docker-proxy",pid=841,fd=4))
tcp LISTEN 0 128 *:443 *:* users:(("docker-proxy",pid=783,fd=4))
tcp LISTEN 0 128 *:2045 *:* users:(("docker-proxy",pid=3321,fd=4))
tcp LISTEN 0 128 *:80 *:* users:(("docker-proxy",pid=851,fd=4))
tcp LISTEN 0 128 *:81 *:* users:(("docker-proxy",pid=829,fd=4))
tcp ESTAB 0 0 178.77.102.5:22 185.243.70.181:39124 users:(("sshd",pid=16868,fd=3))
tcp LISTEN 0 128 [::]:22 [::]:* users:(("sshd",pid=396,fd=4))
If you want to install and run a mail server you’ll need to look elsewhere for how to do that. It’s beyond the scope of what’s supported here.
It looks like you’re using wp10750459.mailout.server-he.de as your mail server? So that’s what is accepting your mail and not delivering it. You’ll need to look at the logs there to find out why.
The easy solution is Mailgun or something like it.