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My domain is:
I have no issues but I am asking for help, I have postfix server and Rukovoditel ERP and I need to setup the email on the ERP email module but I see this error when I press check the connection in the ERP.
What I need to know to setup a secure channel between both servers?
Postfix server have a valid working Let's Encrypt certificate.
I can provide the domain privately.
This is the error when I run cronjob on my own Rukovoditel (ERP) server:
/usr/bin/php /var/www/portal.domain.com/public_html/cron/email_fetch.php
PHP Warning: imap_open(): Couldn't open stream {mail.domain.com:993/imap/ssl}INBOX in /var/www/portal.domain.com/public_html/plugins/ext/classes/mail/mail_fetcher.php on line 38
Certificate failure for mail.domain.com: self signed certificate: /CN=mail.domain.com
And I have just updated as you replied on my Mail server file /etc/dovecot/conf.d/10-ssl.conf as below:
Commented these two lines: #ssl_cert = </etc/ssl/certs/ssl-cert-snakeoil.pem #ssl_key = </etc/ssl/private/ssl-cert-snakeoil.key
Restarted then run the cronjob again, and it say now:
PHP Warning: imap_open(): Couldn't open stream {mail.domain.com:993/imap/ssl}INBOX in /var/www/portal.domain.com/public_html/plugins/ext/classes/mail/mail_fetcher.php on line 38
Can not authenticate to IMAP server: [AUTHENTICATIONFAILED] Authentication failed.