SMTP, or Simple Mail Transfer Protocol, is a set of communication guidelines used by email servers to deliver emails to their clients. Your emails are just strings of text; SMTP helps servers and ...

I have some e-mail on my Exchange Queue for 3/4 domains that just won't send. It just says "SMTP Protocol Error Occurred". I activated logging in MSExchangeTransport ...

Deep Sky Technologies has released SMTP Deux 1.0.0 (yep, two zeros there) for Macintosh and Windows. It’s a 4th Dimension component that offers a complete implementation of the SMTP protocol. SMTP ...

4 0 0 ACCEPT tcp -- any any 10.100.100.0/24 anywhere state NEW tcp dpt:ssh 5 1 64 ACCEPT tcp -- any any anywhere anywhere state NEW tcp dpt:smtp 6 730 103K REJECT all -- any any anywhere anywhere ...

The basis of a maintainable and stable software system is the ability to easily unit test the system in an automated way using testing frameworks such as JUnit. Unfortunately, verifying correct ...

In this post, we will talk about how to fix Outlook Error 0x800CCC67. It is an SMTP protocol error that prevents users from sending email messages. SMTP stands for ...

Multiple hosted, outbound simple mail transfer protocol (SMTP) servers are vulnerable to email impersonation. This allows authenticated users and certain trusted networks to send emails containing ...

A critical vulnerability in the free OpenSMTPD email server present in many Unix-based systems can be exploited to run shell commands with root privileges. The component is a free implementation of ...