The error response was sent to GMail, not apache.org. Looks like the email was not really from apache.org. The ASF mailer relies on the envelope sender, not the From header.
On Fri, 10 Oct 2025 at 01:13, Niall Pemberton <[email protected]> wrote: > I tried to send out the announcement email for Mesos - I used my apache > email, but got the response "sender not allowed here" > > Does anyone have any idea? > > Niall > > ---------- Forwarded message --------- > From: Mail Delivery Subsystem <[email protected]> > Date: Fri, 10 Oct 2025 at 01:08 > Subject: Delivery Status Notification (Failure) > To: <[email protected]> > > > [image: Error Icon] > Message blocked > Your message to *[email protected]* has been blocked. See technical > details below for more information. > The response from the remote server was: > > 550 5.7.1 Sender not allowed here > > > > ---------- Forwarded message ---------- > From: Niall Pemberton <[email protected]> > To: [email protected] > Cc: > Bcc: > Date: Fri, 10 Oct 2025 01:07:46 +0100 > Subject: Apache Mesos is now retired > Announcing that the Apache Mesos committers have voted to retire the > project due to inactivity. Mesos was a cluster manager that provides > efficient resource isolation and sharing across distributed > applications. > > Retiring a project is not as simple as turning everything off, as > existing users need to both know that the project is retiring and > retain access to the necessary information for their own development > efforts. > > You can read more about Mesos's retirement at: > > https://attic.apache.org/projects/mesos.html > > The project's resources will continue to be available in a read-only > state - website, mailing lists, wikis, git, downloads and bug tracker > with no change in url. > > Providing process and solutions to make it clear when an Apache > project has reached its end of life is the role of the Apache Attic, > and you can read more about that at: > > https://attic.apache.org/ > > Thanks, > > Niall > on behalf of the Apache Attic and the now retired Mesos project >
