Dealing with MS Exchange Mailbox Corruption – Reasons & Solutions

Fix corrupted Exchange Mailbox

From the years, MS Exchange went through several updates and a new version with unbeatable features and Advantages. Even though the latest version of MS Exchange Mailbox is not only stable but also mature, it is still vulnerable when it comes to corruption. One can never guarantee the security of this platform. Corrupt data can ... Read more

Export & Import Exchange Mailboxes to PST Files

Exchange PST import and Export

Exchange mailboxes are used by companies for storage of information such as emails, contacts, and events, etc. With the assistance of email clients, this information available on the server can be fetched and modified. Sometimes data migration is required for enabling offline access while in situations where data corruption occurs in Exchange due to a ... Read more

How to enable port 465 (smtps) in postfix mailserver

More and more internet access providers are closing port 25 to reduce spam except for connections to their own mailservers. If you run your own mailserver and have problems to connect to it on port 25, you can enable port 465 (smtps) in postfix as a workaround. Edit the /etc/postfix/master.cf file: vi /etc/postfix/master.cf and remove ... Read more

How to renew SSL certificates for courier pop3 and imap server on Debian or Ubuntu?

This articles describes the renewal of SSL certificates for courier pop3 and imap server. This is nescessary e.g. when the certificates are expired or contain the wrong hostname. First delete the exsiting certificates: rm -f /etc/courier/imapd.pem rm -f /etc/courier/pop3d.pem Then edit the template that contains the details for the ecrtificates so that the hostname in ... Read more

Postfix: One of the users on the system has a CatchAll-email address. He receives all emails, even those intended for users of another site on the same server.

Please check if the domain of the users that receives all emails is the same as the domain $mydomain in /etc/postfix/main.cf. If this is the case, change $mydomain and run: postfix reload on the shell. You should never enter a domain that is used for a virtual site on the server as $mydomain in /etc/postfix/main.cf!