Re: Formatting of 544- ... lines in "Undelivered Mail Returned to Sender"

2009-09-11 Thread Robin Whittle
Hi Wietse, You wrote: >> What benefits could there be to Postfix's reformatting of the >> diagnostic information? > > For security reasons Postfix never presents error messages and > responses "as is" especially when information does not have a > known-to-be trusted origin. Instead, Postfix rem

Re: Formatting of 544- ... lines in "Undelivered Mail Returned to Sender"

2009-09-10 Thread Robin Whittle
Hi Wietse, Thanks for your reply: >> I am not sure whether this is specified in an RFC, but I understand >> that for every part of the remote MTA's response which starts with >> "544-" there should be a new line in the message to the sender. > > Error reports are standardized in 346[1-4]. I invi

Formatting of 544- ... lines in "Undelivered Mail Returned to Sender"

2009-09-09 Thread Robin Whittle
Thanks, as always, for Postfix! I have been using it for at least ten years what I describe below is the first time I have questioned how well it works. This is version 2.3.3 on CentOS 5.1. When Postfix (or any other MTA) attempts to send a message to another MTA, and that remote MTA rejects the