As is usual with such queries, he copied and pasted some sections from the mail logs so that others on the list could try and diagnose the issue.
Mali received several helpful replies, including one from the creator of Postfix itself, the much revered Wietse Venema.
But Mali came in for severe ridicule when he decided that, perhaps, he should have excised some of the data from the logs before posting them in his mail.
He had included IP addresses as well, and perhaps for this reason he suddenly wrote a panicky message to the list: "Hello Moderator, please delete this thread for security reason".
Mailing list software does not do anything apart from receiving and despatching mail to the subscribers on the list. The messages are then deleted but get archived on many places on the web.
Hence Mali's message could only be classed as stupid.
And he was told so in both polite terms and not so politely as well. One poster to the list, Reindl Harald, wrote: "You have no clue how email and maling-lists are working? how do you imagine to delete a thread?"
Venema then responded, levelling with him: "Sorry, this thread is archived for eternity and world-side in websites, search engines, and personal mailboxes."
But it didn't seem to sink in. Mali wrote back: "please at least remove from this site, there is security audit going on in my organisation i dont want to maintain this thread , please remove this".
Harald retorted: "sorry you can not expect that someone maintains informations you are sent to the public nor that the origin archive will have removed messages which are available everywhere else".
Another poster, Denis Witt clarified things for Mali: "there is no such thing as "this site". From my point of view there isn't even a site at all, only my E-Mail-Client. There are so many mirrors of the Postfix-Mailing-List you can spend the rest of your lifetime trying to delete all copies of your message. Also I don't see anything security relevant in your messages."
An apparently desperate Mali tried again: "remove my messages".
Harald got annoyed. "Who do you think you are telling people what to remove from their local mail-archive since it was explained to you that in global ones nobody can remove anything for you," he wrote.
"do not send informations which are not meant for leave your company or learn from your mistakes - nobody else is responsible for anything leaving your mail-client.
"there is nothing more you can expect".