Rocky, Alma, Springdale 9 QT Install

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Enterprise Linux 9 Minimal Install

QMT Install ('Many-Domain')

# curl -o /usr/local/bin/qt_install https://raw.githubusercontent.com/qmtoaster/scripts/master/qt_install_cos9.sh
# chmod 755 /usr/local/bin/qt_install
# qt_install
# toaststat

Status of toaster services
send: up (pid 1323) 1517 seconds
smtp: up (pid 1324) 1517 seconds
submission: up (pid 1325) 1517 seconds
send/log: up (pid 1316) 1517 seconds
smtp/log: up (pid 1311) 1517 seconds
submission/log: up (pid 1314) 1517 seconds

systemd service:               clamd@scan:       [ OK ]
systemd service:         clamav-freshclam:       [ OK ]
systemd service:             spamassassin:       [ OK ]
systemd service:                  dovecot:       [ OK ]
systemd service:                  mariadb:       [ OK ]
systemd service:                    httpd:       [ OK ]
systemd service:                    named:       [ OK ]
systemd service:                     ntpd:       [ OK ]
systemd service:                     sshd:       [ OK ]
systemd service:                  network:       [ OK ]
systemd service:                    crond:       [ OK ]
systemd service:                    acpid:       [ OK ]
systemd service:                      atd:       [ OK ]
systemd service:                   autofs:       [ OK ]
systemd service:                   smartd:       [ OK ]
systemd service:               irqbalance:       [ OK ] (Multiple processors only)

# conntest
Enter a valid remote email account to which QMT will send mail: <email address>
IMAPS: postmaster@domain.tld --> success
Submission: postmaster@domain.tld --> success
SMTPS: postmaster@domain.tld --> success

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Many Domain Install (Alias Domain)
Qmail-1.03-3.3.11 (OpenSSL3)
Patches applied

Install certificate

 Certificate

Test certificate

 # curl --verbose smtps://mail.domain.tld or openssl s_client mail.whitehorsetc.com:465
 # curl --verbose imaps://mail.domain.tld

or

 # openssl s_client mail.domain.tld:465
 # openssl s_client mail.domain.tld:993 

* Server certificate:
*  subject: CN=mail.domain.tld
*  start date: Jul 30 09:16:16 2024 GMT
*  expire date: Oct 28 09:16:15 2024 GMT
*  subjectAltName: host "mail.domain.tld" matched cert's "mail.domain.tld"
*  issuer: C=US; O=Let's Encrypt; CN=R11
*  SSL certificate verify ok.

If you get an error like this when checking your certificate

806B7387577F0000:error:0A00010B:SSL routines:ssl3_get_record:wrong version number:ssl/record/ssl3_record.c:354

It can mean that your certificate is not the correct number of bits which need to be 2048