Thanks for the reply, and the suggestions, please see below in-line.
On 2023-04-07 13:25:42, Viktor Dukhovni via Postfix-users wrote:
> On Fri, Apr 07, 2023 at 11:25:33AM -0400, micah via Postfix-users wrote:
>
>> I have a few remote hosts who cannot send me mail, and I'm trying to
>> determine
gt;>
>>Unfortunately, I do not have any way to communicate with the client MTA
>>admins, so I'm shooting in the dark here.
>
>>Restarted postfix after these changes and triggered the remote client to
>>try again, but unfortunately, the same error happens. Same