"list-unsubscribe" mail header & no footer

[André-John Mas]

My entry was:

    "L:macports-users.lists.macports.org" => {
      "updatedAt" => 667601013
      "value" => "accepted"
    }

but trying to remove it makes no difference. I tried that while the mail client was quit. It reappears, but the
unsubscribe button doesn't appear for this list.

Using Apple Mail 16.0 and receiving on via gmail. Only seems to impact this mailing list. Will need to dig more.

The main reason for bringing this up is that I have seen lists getting marked as spam when enough
people can't work out how to unsubscribe.

> On 5 Apr, 2022, at 15:38, Mike Cappella <mike at cappella.us> wrote:
> 
> 
> 
>> On Apr 5, 2022, at 11:12 AM, André-John Mas <andrejohn.mas at gmail.com <mailto:andrejohn.mas at gmail.com>> wrote:
>> 
>> I just noticed that the emails for "macports users" aren't showing the "unsubscribe" button in
>> Apple Mail and they don't have a footer to link to unsubscribe instructions, as I am used to
>> seeing in other list server based messages.
>> 
>> Which is the right channel to bring up this issue?
> 
> You've likely hit the X to clear the Unsubscribe button, and this gets stored as a property:
> 
>     ~/Library/Mail/V9/MailData/
> 
> $ plutil -p EMUbiquitouslyPersistedDictionary-com.apple.mail.listUnsubscribeInfo.plist
> {
>   "data" => {
>     ...
>     "L:macports-users.lists.macports.org <http://macports-users.lists.macports.org/>" => {
>       "updatedAt" => 670876830
>       "value" => "ignored"
>     }
>   }
>   "version" => 1
> }
> 
> Note the value "ignored" above, which I believe prevents showing the Unsubscribe button.
> 
> They will also be in the sandboxed area:
> 
>     ~/Library/Containers/com.apple.Mail/Data/Library/Mail/V9/MailData/
> 
> I'm not sure what path to provide to clear the property.

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