Re: Eric Sunshine mail delivery failure

[Johannes Löthberg]

On 23/08, René Scharfe wrote:

Eric, hope you see this reply on the list. Direct replies to sunsh...@sunshineco.com are rejected by my mail provider on submit in Thunderbird with the following message:

   Requested action not taken: mailbox unavailable
   invalid DNS MX or A/AAAA resource record.

And with this one when using their web interface:

   A message that you sent could not be delivered to one or more of
   its recipients. This is a permanent error. The following address
   failed:

   "sunsh...@sunshineco.com":
   no valid MX hosts found


better provider, I guess. :-(

It seems web.de wants you to get an AAAA record before I'm allowed to send mails to you. Sounds crazy. Sorry about that. Time to find a

--
Sincerely,
 Johannes Löthberg
 PGP Key ID: 0x50FB9B273A9D0BB5
 https://theos.kyriasis.com/~kyrias/

Just an A record would be enough. The issue is that mail.sunshineco.com has neither an A nor an AAAA record, it is a CNAME to sunshineco.com, which is invalid according to RFC2181.

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