If a server needs longer than 100ms to answer on EHLO or is sending a single line response, Message Control is no longer waiting for supported extensions of the SMTP server and supposes that the SMTP server is not supporting SMTP AUTH.
If a server needs longer than 100ms to answer on EHLO or is sending a single line response, Message Control is no longer waiting for supported extensions of the SMTP server and supposes that the SMTP server is not supporting SMTP AUTH.
An issue has been addressed in the SMTP dispatcher of Message Control. Now, the dispatcher waits for 250ms instead of 100ms. Additionally, if no AUTH information is available in the first answer, the dispatcher checks every 250ms (for 10 seconds) if any other extensions are supported by the SMTP server.