On 11/13/15 8:12 PM, Lisi Reisz wrote:
You're assuming it's a hobby. Quite a few of us use email lists for professional purposes. And you're assuming that the change was a reasoned decision made at a high level, not some half-assed management decision, with half-assed implementation.On Saturday 14 November 2015 00:43:43 Miles Fidelman wrote:On 11/13/15 7:15 PM, Lisi Reisz wrote:On Friday 13 November 2015 22:14:30 Don Armstrong wrote:On Fri, 13 Nov 2015, Steve Kleene wrote:Almost five years ago, I became unable to post questions here by e-mail. The e-mail bounces with, for example:The following message to <debian-user@lists.debian.org> was undeliverable. The reason for the problem: 5.1.0 - Unknown address error 550-'5.1.7<prvs=752320ad2=skdeb@syrano.acb.uc.edu>: Sender address rejected: undeliverable address: host syrano.acb.uc.edu[129.137.3.161] said: 550 5.1.1 <prvs=752320ad2=skdeb@syrano.acb.uc.edu>... User unknown (in reply to RCPT TO comm--4pO84.596/vqwKa.2j26M/gYqU.DibVXRw content-type: message/delivery-status Reporting-MTA: dns; ucmailmx4.uc.edu Final-Recipient: rfc822;debian-user@lists.debian.org Action: failed Status: 5.0.0 (permanent failure) Remote-MTA: dns; [82.195.75.100] Diagnostic-Code: smtp; 5.1.0 - Unknown address error 550-'5.1.7<prvsu2320ad2=skdeb@syrano.acb.uc.edu>: Sender address rejected: undeliverable address: host syrano.acb.uc.edu[129.137.3.161] said: 550 5.1.1 <prvsu2320ad2=skdeb@syrano.acb.uc.edu>... User unknown (in re--4pO84.596/vqwKa.2j26M/gYqU.DibVXRw content-type: message/rfc822This commenced about the time my employer started prepending a bounce address validation tag ("prvs=752320ad2=" in the above example) to my e-mail address on outgoing mails. This fails with the debian lists but nowhere else. I have circumvented the problem ever since by posting via gmane.org.This is because you are not supporting sender callback verification; the envelope from that you are using needs to be an address which can be received. If not, it's not valid. See https://en.wikipedia.org/wiki/Callback_verification for detailsThat's the problem, not the solution, Don.Well the solution is to have a talk with the mail system admin who reconfigured the mail system, and did a half-assed job of it.Most employers are going to reconfigure their email systems to suit the hobby of one of their employees? You have obliging employers where you come from!
Configuring a server with bounce address validation, but not implementing a working validation address is, charitably, an oversight; less charitably, it's incompetence.
It's perfectly reasonable to have a talk with whomever administers the mail system in question, and suggest that they finish the job. Depending on where you sit in the organization, it's quite possible to get stuff fixed.
Miles Fidelman -- In theory, there is no difference between theory and practice. In practice, there is. .... Yogi Berra