Restricting the ETRN Command in Postfix
Introduction The ETRN command in SMTP (Simple Mail Transfer Protocol) is used to request the immediate delivery of queued mail […]
Restricting the ETRN Command in Postfix Read Post »
Introduction The ETRN command in SMTP (Simple Mail Transfer Protocol) is used to request the immediate delivery of queued mail […]
Restricting the ETRN Command in Postfix Read Post »
Introduction Role-Based Access Control (RBAC) is a method of regulating access to computer or network resources based on the roles
Understanding Role-Based Access Control (RBAC) Read Post »
Handling non-compliant SMTP clients refers to managing email clients or servers that do not adhere to the standard protocols and
Handle non-compliant SMTP clients? meaning Read Post »
Ever wonder why your server suddenly gets blacklisted even though you haven’t done anything wrong? It’s often because your mail
Why Your Server Might Get Blacklisted and How to Secure Your Mail Server Read Post »
In the context of BIND (Berkeley Internet Name Domain) DNS, recursion refers to the process where a DNS server queries
Recursion in BIND DNS Read Post »
Changing the default port for Postfix can be safe, but it comes with certain considerations and potential consequences. Here’s a
Change Postfix Default Port and What Are the Consequences? Read Post »
Introduction TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are two core protocols of the Internet Protocol (IP) suite.
TCP vs. UDP: Understanding the Differences Read Post »
In the realm of email communication, managing mail effectively is crucial for both personal and business use. Two key players
Dovecot IMAP/POP3 Server and Its Relationship with Postfix Read Post »
To verify if a DNS server has successfully received a zone transfer, you can follow these steps based on whether
Checking if a DNS Server Received a Zone Transfer Read Post »
In the context of BIND (Berkeley Internet Name Domain), the term “Ignore Bogus Server” refers to a security feature that
Ignoring Bogus Servers in BIND Read Post »
Anycast DNS is a network addressing and routing method that allows multiple servers to share the same IP address. This
What is Anycast DNS? Read Post »
Anycast is primarily a networking concept rather than a specific software application. Therefore, you generally need to configure your network
Installation of Anycast on Linux and Windows Read Post »