554 5.7.1 Mail appears to be unsolicited

[rupadana]

Hello, today I have received mail from Mail Delivery System
the error message :

<email@domain.com>: host domain.com[IP ADDRESS] said: 554 5.7.1 Mail (id-59107-05317) appears to be unsolicited, please resend with the code usadusy34 appended to email subject and ask to have your sender email whitelisted (the code usadusy34 changes each 24 hours). (in reply to end of DATA command)
Return-Path: <myemail@domain.com>

[phoenix]

Well, the [problem here is you haven't given any context to the error message. Does it look like spam, to whom (which service) did you send this email, have you dealt with this service before?

If you want help in these forums then you have to give some idea of the exact problem and what you've done to try and fix it otherwise we won't be able to help - unfortunately we're not mind readers.

[rupadana]

I am sorry
this is the full error message from Undelivered Mail Returned to Sender

Code: Select all

<email@domain.com>: host disinivillas.com[170.249.202.114] said: 554
    5.7.1 Mail (id-59107-05317) appears to be unsolicited, please resend with
    the code 0y5avy6a appended to email subject and ask to have your sender
    email whitelisted (the code 0y5avy6a changes each 24 hours). (in reply to
    end of DATA command)

Return-Path: <email@domain.com>
Received: from localhost (localhost [127.0.0.1])
        by mydomain.com (Postfix) with ESMTP id BF24ABE8C20
        for <email@domain.com>; Tue,  2 Jun 2020 02:17:34 -0400 (EDT)
Received: from mydomain.com ([127.0.0.1])
        by localhost (mydomain.com [127.0.0.1]) (amavisd-new, port 10032)
        with ESMTP id 3wHSAvTsU8JS for <email@domain.com>;
        Tue,  2 Jun 2020 02:17:33 -0400 (EDT)
Received: from localhost (localhost [127.0.0.1])
        by mydomain.com (Postfix) with ESMTP id 60653BE8B17
        for <email@domain.com>; Tue,  2 Jun 2020 02:17:32 -0400 (EDT)
DKIM-Filter: OpenDKIM Filter v2.10.3 mydomain.com 60653BE8B17
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mydomain.com; s=domain;
        t=1591078652; bh=m98SFVOPnUh2W/id4RZrdoV8dHJIGZkDeXg9a60eKWc
        h=Date:From:To:Message-ID:MIME-Version;
        b=ks+Q0UPY/aegPjdVadZVYc1iRniDqzLh7AWawKlWiVlrvFYsyXmJ8T5Y45smXTvfB
         fY7Zm5w2A3pK59JcFYG/W0bF6IxDVFcnT348L2suDJ16rvBm6vWwlmuL+FdJYLm8pf
         hrp0GLU/ccsCO/9l0VE7nqJcWILwy9tCFSAxPimoSq7hGaZLhWVQmS3OijHqQG9Fxd
         TIAvM52ccwTYTp94enEYYCDWUa99GPW5q1d1uQmgNERGlYL7FTGqosHquRzElloUPm
         bbaZRaszPHkbv9YuaJl6HRmBq7WvuwZxM5F7nu3QVX7r1nODy6rVoZTzbraxfgAmR1
         Ury6euCvW58Kw==
X-Virus-Scanned: amavisd-new at domain.com
Received: from mydomain.com ([127.0.0.1])
        by localhost (mydomain.com [127.0.0.1]) (amavisd-new, port 10026)
        with ESMTP id UVqVFTVl4P0p for <email@domain.com>;
        Tue,  2 Jun 2020 02:17:31 -0400 (EDT)
Received: from mydomain.com (mail.mydomain.com [IP HOSTNAME])
        by mydomain.com (Postfix) with ESMTP id 5C1A7BE8C2F
        for <email@domain.com.com>; Tue,  2 Jun 2020 02:17:31 -0400 (EDT)
Date: Tue, 2 Jun 2020 02:17:30 -0400 (EDT)
From: myemail@mydomain.com
To: Other Mail <mail@domain.com>
Message-ID: <1122711987.23285.1591078650885.JavaMail.zimbra@mydomain.com>
Subject: Invoice 
MIME-Version: 1.0
Content-Type: multipart/mixed;
        boundary="----=_Part_23281_2138139009.1591078650876"
X-Originating-IP: [IP HOSTNAME]
X-Mailer: Zimbra 8.7.0_GA_1659 (ZimbraWebClient - GC83 (Win)/8.7.0_GA_1659)
Thread-Index: Yw2Ft1tQj45YEDIGq63MaAF5G81bBA==
Thread-Topic: Invoice 

[BradC]

I am sorry
this is the full error message from Undelivered Mail Returned to Sender

Code: Select all

<email@domain.com>: host disinivillas.com[170.249.202.114] said: 554
    5.7.1 Mail (id-59107-05317) appears to be unsolicited, please resend with
    the code 0y5avy6a appended to email subject and ask to have your sender
    email whitelisted (the code 0y5avy6a changes each 24 hours). (in reply to
    end of DATA command)

Your recipients E-mail system is being intentionally difficult. If you want the Invoice to go through you'll need to jump through that hoop and do what the message asks.
I'd also have a word with them about their broken system but I can't say that will actually do anything.