Can ESMTP be used for email delivery? I am trying to configure our own email server with PRTG. Using Telnet I am able to send emails using following commands but when I configure same settings in PRTG it says unsuccessful authentication. I think the problem is with HELO Ident. Am I right?

EHLO servername
auth plain [authstring]
mail from: mail@address.com
rcpt to: rcpt@address.com
data
subject: test
test
.

Article Comments

Attention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.

Hello,

If esmtp support authentication username and Password it can be used for email delivery.

The sender-SMTP must ensure that the domain parameter in a HELO command is a valid principal host domain name for the client host.


Oct, 2016 - Permalink