I'm not seeing any errors for those domains for any of my lists.

Wonder if your listserv mailer has been blacklisted.

BTW, I seldom have my lists do auto-deletes.  YMMV.

On 7/21/2022 13:29, William Schults wrote:
[log in to unmask]">
I'm a list owner of a list hosted at listserv.dartmouth.edu.

Last night, all of our yahoo.com and aol.com subscribers were deleted after several days of errors.

The errors messages were:
For Yahoo subscribers:
Last error was: 5.4.300 550 5.4.300 Message expired -> 451 [RL01] Message
                  temporarily deferred
or for AOL subscribers:
  Last error was: 5.4.300 550 5.4.300 Message expired -> 421 4.4.2 Connection
                  dropped due to SocketError
I have manually added the subscribers back in, but expect that errors will begin again.

Anyone else experiencing this or have suggestions?  Has there been a policy change with Yahoo and AOL that is no longer compatible with ListServ?

Thanks in advance.

Bill Schults
Co-owner [log in to unmask]

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