- ... Please stop sending HTML-only posts to a mailing list. That is bad etiquette. After: # postconf resolve_dequoted_address = no # postfix reload I get theMessage 1 of 31 , Jan 3, 2013View SourceMichael Blessenohl:
>Please try again using the telnet command on a different machinePlease stop sending HTML-only posts to a mailing list.
>than localhost(br(span style="font-family:Prelude, Verdana,
That is bad etiquette.
# postconf "resolve_dequoted_address = no"
# postfix reload
I get the same result no matter if I use localhost or the machine
name itself, simply because both are listed in mydestination.
% telnet hostname smtp
Connected to hostname.watson.ibm.com.
Escape character is '^]'.
220 hostname.watson.ibm.com ESMTP Postfix
250 2.1.0 Ok
250 2.1.5 Ok
Hostname and IP address information slightly altered.
- ... Come on, don t be so naive. The backup MX scenario is an EXAMPLE of how @ in local-part can result in trouble. The same problem may happen in ANY piece ofMessage 31 of 31 , Jan 4, 2013View SourceMichael Blessenohl:
> The security issue is, as far as I understand, that a backup MX uses anCome on, don't be so naive. The backup MX scenario is an EXAMPLE
> @ in the local part for internal purposes. Which, in theory, can be
> exploited to use the server as open relay. As long as I don't use a
> backup MX, I don't have an open relay and everything is fine, isn't it?
of how @ in local-part can result in trouble. The same problem may
happen in ANY piece of software that decisions based on the content
of an email address.