[lttng-dev] efficios MX problems? (was: urcu 7ca7fe9c03 + _LGPL_SOURCE regression?)

[Eric Wong]

I'm not sure why b.barracudacentral.org doesn't like my MTA.
I got something similar in my initial message to Simon but
brushed it off thinking it was a fluke, but I just got this
again with Mathieu in the recipient list, as well.

dcvr.yhbt.net was recently forced to get a new IP address,
but DKIM + SPF are set up and it manages to deliver fine to
at least one major email provider:

> Reporting-MTA: dns; dcvr.yhbt.net
> X-Postfix-Queue-ID: 343331F54E
> X-Postfix-Sender: rfc822; normalperson at yhbt.net
> Arrival-Date: Sat, 20 Aug 2022 18:51:43 +0000 (UTC)
> 
> Final-Recipient: rfc822; mathieu.desnoyers at efficios.com
> Original-Recipient: rfc822;mathieu.desnoyers at efficios.com
> Action: failed
> Status: 5.7.1
> Remote-MTA: dns; mail.efficios.com
> Diagnostic-Code: smtp; 550 5.7.1 Service unavailable; client [173.255.242.215]
>     blocked using b.barracudacentral.org
> 
> Final-Recipient: rfc822; simon.marchi at efficios.com
> Original-Recipient: rfc822;simon.marchi at efficios.com
> Action: failed
> Status: 5.7.1
> Remote-MTA: dns; mail.efficios.com
> Diagnostic-Code: smtp; 550 5.7.1 Service unavailable; client [173.255.242.215]
>     blocked using b.barracudacentral.org

I wonder if any other self-hosters are hitting this problem...