Description: Starting mail input. What does this mean? This is simply another response from the mail server stating that the “From” and “To” information has been received. It is now waiting for the “Body” content of the email message. This is essentially a progress of status. There is no “fix” for this SMTP Response code, […]

Description: Can not verify user; accepting message for attempt. What does this mean? The message was received properly, and there is some positive record of the email address existing. However, it’s most likely not on the delivered mail server and being held until verification is possible. 95% of the time, this message will be delivered […]

Description: User not local; will forward to <REMOTE PATH> What does this mean? This is a good response. It means the mail server accepted your message, however the email account specified does not actually reside on that server. Thus, it is forwarding it to the correct server. An example of this would be using cPanel’s […]

Transport Layer Security (TLS) continues to improve and close old security vulnerabilities with each new version, with TLS 1.2 being the current standard (and TLS 1.3 being the next version that will be adopted.) Windows 7 (or more specifically, applications that use WinHTTP for SSL on Windows 7) cannot make use of TLS 1.1 or more importantly, […]

When attempting to resolve mail server errors/issues, being able to test the connection to a remote SMTP server is a critical step. Testing a remote SMTP / mail server connection should be done from both a local machine (computer) and the server experiencing the issue. If a connection can be made from both locations, the […]