Hi, I have some hard data. I've published a DMARC record for my domain, which you can see by running: host -t txt _dmarc.skoll.ca I receive DMARC reports so I can see when major email providers quarantine or reject mail from me. I've analyzed the reports and the table below shows all of the times major email providers have rejected or quarantined email that I have sent to this mailing list. So no, it isn't "mostly working". Regards, Dianne. domain | mindate | org | disposition | reason | spfdomain ----------+---------------------+--------------------+-------------+-----------+------------------ skoll.ca | 2023-12-26 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2023-12-26 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2023-12-26 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2023-12-26 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2023-12-27 19:00:00 | Enterprise Outlook | reject | | linux-ottawa.org skoll.ca | 2023-12-27 19:00:00 | Enterprise Outlook | reject | | linux-ottawa.org skoll.ca | 2023-12-27 19:00:00 | Enterprise Outlook | reject | | linux-ottawa.org skoll.ca | 2023-12-27 19:00:00 | Enterprise Outlook | reject | | linux-ottawa.org skoll.ca | 2023-12-27 19:00:00 | Outlook.com | reject | | linux-ottawa.org skoll.ca | 2023-12-27 19:00:00 | Outlook.com | reject | | linux-ottawa.org skoll.ca | 2023-12-27 19:00:00 | Outlook.com | reject | | linux-ottawa.org skoll.ca | 2023-12-27 19:00:00 | Outlook.com | reject | | linux-ottawa.org skoll.ca | 2023-12-27 19:00:00 | emailsrvr.com | reject | | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | Enterprise Outlook | reject | | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | Enterprise Outlook | reject | | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | Enterprise Outlook | reject | | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | Outlook.com | reject | | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | Outlook.com | reject | | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | Outlook.com | reject | | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | Yahoo | reject | | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | Yahoo | reject | | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | Yahoo | reject | | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | emailsrvr.com | reject | | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-14 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | Yahoo | reject | | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | Yahoo | reject | | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | Yahoo | reject | | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | Yahoo | reject | | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | Yahoo | reject | | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | Yahoo | reject | | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | emailsrvr.com | reject | | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | emailsrvr.com | reject | | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | reject | | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | reject | | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | reject | | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org skoll.ca | 2024-01-24 19:00:00 | google.com | quarantine | forwarded | linux-ottawa.org (48 rows) To unsubscribe send a blank message to linux+unsubscribe [ at ] linux-ottawa [ dot ] org To get help send a blank message to linux+help [ at ] linux-ottawa [ dot ] org To visit the archives: https://lists.linux-ottawa.org