Hello, some mails are rejected and i get back error message with Action: failed Status: 5.7.1 Remote-MTA: dns; smtp2.azet.sk Diagnostic-Code: smtp; 554-5.7.1 <xy>: Recipient address rejected: Invalid HELO/EHLO; Cannot resolve 'xyz', no such domain 554 5.7.1 For assistance, contact your administrator or see http://onas.azet.sk/kontakty Please provide the following information in your problem report: Time: (Oct 19 14:15:55), Client: (31.31.75.56), Server: (xy). So i think i should change name of server xyz to IP address of vps 31.31.75.56? I am using isp config, so probably this i have to change somewhere in postfix config via terminal? in etc/postfix/main cf i foiund line myhostname = xyz Can i change this to vps IP address or to localhost and all well be fine?
I tried to use hostname --fqdn i get same server as hostname, so xyz EDIT: i changed hostname from xyz - server name to domain name - domain.com and looks like that mails for this email address is just delivered without error message. I hope thats fine.
