I am extremely new to Virtualmin and hope someone could help me on this one.
I have a dedicated server and have 3 websites on it. The OS is Ubuntu 8.10. All works well, but I cannot sent email from only one account. The other emails on the same domain is fine, but this one user is using Vista with Outlook 2007. When replying to an email, it works fine, but trying to sent email to new recipient, it’s not delivered. I also get the message that the certificate could not be verified.
I am not well skilled in these kind of things and had a fried installing this for me, he also do not know how to solve this one.
Thanks for the feedback. the uses we are trying to email is users on other servers.
She gets basically 2 messages. the First messages is a message that the certificate can not be verified and the second message she gets is a message that the sent and receive (connection) time-out.
I have attached the mail.log file. I really need help on this PLEASE
Okay, here is my guess – I’m guessing that the user who’s having trouble is trying to authenticate on port 25, but their ISP is blocking that port.
Alternatives are:
Have that user relay email through their ISP, rather than trying to send outgoing email via your servere
Have them use SSL/TLS for outgoing SMTP authentication – which uses port 465 or 587. If it’s not already enabled, you’ll want to take a peek in your /etc/postfix/master.cf, and make sure that these lines at the top are uncommented: