You will have to create an email to your LISTSERV with the command - "GET LISTNAME PW=admin-owner"



LISTSERV will email you a full file of the list with all the subscribers.

Forward the email back to LISTSERV changing the command on the first line from PUT to PUTALL 



Then scroll down through the subscribers to find the email address with unprintable characters and carefully remove that line

Mike



> -----Original Message-----

> From: LISTSERV Site Administrators' Forum <LSTSRV-

> [log in to unmask]> On Behalf Of David Collantes

> Sent: Tuesday, March 9, 2021 3:44 PM

> To: [log in to unmask]

> Subject: Erroneous undeletable/“unsubscribable” email addresses

> 

> We have lists in which owners have managed to subscribe mangled emails in the

> form:

> 

> [log in to unmask]<MAILTO:JOHN_DOE”@CHEMISTRY.UCF.ED

> U

> 

> Surprisingly enough, ListServ will let you do that. The trick is, they can’t be

> deleted. Not via an email command to ListServ, not via the web interface. This

> dilemma has, inevitably, taken me to web searches to no end, without finding an

> answer, and—now—here.

> 

> Before I open a support case with LSOFT, would anyone know the answer? How

> to unsubscribe those unremovable entries?

> 

> TIA,

> 

> --

> David

> 

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> 

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