From: nunojsilva@invalid.invalid   
      
   On 2025-10-11, DICK HOFFMAN wrote:   
      
   > On 10/10/2025 5:31 PM, NFN Smith wrote:   
   >> DICK HOFFMAN wrote:   
   >>>> I went back to Smith's post and reread it carefully. Then I looked   
   >>>> at the SeaMonkey server settings for my Hotmail account again and   
   >>>> found that I had not set my email address correctly in the SMTP   
   >>>> settings. I've fixed that and now emails seem to be going through   
   >>>> correctly. Had to be   
   >>>> some little thing that I overlooked. Thanks for the   
    responses I got.   
   >>>> Dick   
   >>   
   >>> I spoke too soon; an email to a gmail account went through but one   
   >>> to an sbcglobal account bounced back. I still think something about   
   >>> my server settings is wrong but what?   
   >>> Dick   
   >>   
   >> What is the reason reported for the bounce?   
   >>   
   >> Smith   
   >   
   > Here's the error message I get back from sbcglobal:   
   > * [addressee's email address]: 550 5.7.9 This mail has been blocked   
   > because the sender is unauthenticated. Yahoo requires all senders to   
   > authenticate with either SPF or DKIM. Authentication results: DKIM =   
   > FAILURE - SPF hotmail.com with ip 51.81.232.240 = FAILURE. See   
   > https://senders.yahooinc.com/smtp-error-codes/#authentication-failures   
   > for more information.   
   >   
   > Original message details:   
   >   
   > 	* Received on: Fri, 10 Oct 2025 20:14:23 +0000   
   > 	* From: DICK HOFFMAN    
   > 	* To:"addressee's email address"   
   > 	* Subject: Re: My orange coat   
   > Original message headers:   
   >   
   > Authentication-Results: earthlink-vadesecure.net; auth=pass   
   > smtp.auth=djhoff@ix.netcom.com smtp.mailfrom=oldrah@hotmail.com;   
   > Received: from [192.168.1.68] ([107.207.105.5]) by   
   > vsel2nmtao02p.internal.vadesecure.com with ngmta id   
   > fb9e0bef-186d3a6b86fcf26a; Fri, 10 Oct 2025 20:14:23 +0000   
   > Subject: Re: My orange coat   
   > From: DICK HOFFMAN    
   > Message-ID:    
   > Date: Fri, 10 Oct 2025 16:14:20 -0400   
   >   
   > I see in the above message headers that "smtp.auth" and   
   > "smtp.mailfrom" are different. Is this possibly the cause of my   
   > problem?   
   > Dick   
   >   
      
   (Here I'd argue that there is also a more general problem on Yahoo's   
   side if they always require SPF or DKIM...)   
      
   You are sending addresses with oldrah@hotmail.com in From: through a   
   server that is not, according to Microsoft, allowed to use such an   
   address.   
      
   I think having a different domain in From: should be doable with some of   
   the checks, provided that the outgoing server (Earthlink) sets the   
   "envelope sender" somehow, besides complying with what is required for   
   said schemes. (If the headers above are complete, it looks like this   
   isn't being done?)   
      
   The easiest way to address this might be for you to use Microsoft's   
   outgoing server, smtp.office365.com, when you compose as   
   oldrah@hotmail.com.   
      
      
      
   (There are three entities at play here,   
      
   1) Earthlink, whose outgoing e-mail server you used for your message;   
      
   2) Yahoo, whose server is receiving your message;   
      
   3) Microsoft, whose DNS entries for hotmail.com state the rules for SPF   
      validation of e-mail messages that use that domain.)   
      
   --   
   Nuno Silva   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)