On 2024-02-24 04:39:46 (+0700), Mark Fletcher via mailop wrote:
I run an email groups hosting service. For many years now, each group
message has included a one click unsubscribe link in the message
footer. We
also include appropriate
List-Unsubscribe-Post: List-Unsubscribe=One-Click
headers. The problem with including a one-click unsubscribe link in
the
message bodies occurs when a group message is forwarded to someone
else,
and they click on the link, unsubscribing the original person. We have
an
easy one-click resubscribe system for this, but it's still not
wonderful
and occasionally causes problems/confusion.
My question to you all is, do you think that the
List-Unsubscribe=One-Click
header is supported well enough these days such that I can replace the
one-click unsub link in the message bodies with a link that requires
authentication? Also, do you think doing so would adversely affect our
distribution?
To avoid breaking DKIM, we stopped adding footers to messages posted to
FreeBSD.org mailing lists. We only have the List-Unsubscribe: header.
We've seen a very slight uptick in "Subject: unsubscribe" posts to the
mailing lists (and to postmaster@) but not enough to lose sleep over.
We don't do the One-Click thing yet - we provide mailto: and an ordinary
webpage. As I understand it, the mailbox services provided by large
internet advertising conglomerates only require One-Click for commercial
email, not for discussion lists. We'll get around to implementing
One-Click eventually, but it hasn't been a priority.
On the whole, I think not meddling with the body (and not breaking DKIM)
provides an improved mailing list experience. We don't have to rewrite
the From: header, and "reply" works the way the poster intends. Neither
the mailing list software nor the recipient has to guess.
Philip
--
Philip Paeps
Senior Reality Engineer
Alternative Enterprises
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