Re: I Found! (Was: Re: EXTERNAL: Re: [oS-en] I do not receive my own mails sent to the list.)

On 2026-06-07 13:48, Masaru Nomiya wrote:
> Hello,
> 
> In the Message;
> 
>    Subject    : Re: I Found! (Was: Re: EXTERNAL: Re: [oS-en] I do not receive my own mails sent to the list.)
>    Message-ID : <[email protected]>
>    Date & Time: Sun, 7 Jun 2026 13:10:37 +0200
> 
> [CER] == "Carlos E. R." <[email protected]> has written:
> 
> CER>  [1  <multipart/mixed (7bit)>]
> CER>  [1.1  <text/plain; UTF-8 (base64)>]
> CER>  On 2026-06-07 01:21, Masaru Nomiya wrote:
> 
> [...]
> MN> > You changed your sender IP address to a GMX server IP to avoid being
> MN> > blacklisted. But here's what you really need to look at;
> 
> CER>  I changed the server. However, my IP is the same.
> [...]
> CER>  The important difference is that GMX hides the client IP, my
> CER> IP. Telefónica does not. Thus when Telefónica gets those two emails
> CER> back from the list server, in the case I sent that email via
> CER> Telefónica they see my router address and say it is bad, and thus
> CER> spam.
> 
> Good Point!
> 
> When you send an email via GMX's servers, your router's IP address is
> not recorded as the sender's address. Instead, the IP address of the
> GMX server is recorded as the sender. Therefore, even if your router's
> IP address is on a blacklist, it will not affect you.
> 
> On the other hand, if you send an email directly from a Telefonica
> connection, your router's IP address is recorded as the sender, so the
> reputation of that IP address directly affects whether the email is
> flagged as spam.

Exactly.

> 
> In short, the key difference lies in "who the sender's IP address
>   belongs to".  By hiding your IP address and using its own highly
>   reputable IP address instead, GMX's servers make it easier to avoid
>   being flagged as spam.
> 
> In other words, GMX operates its servers in a way that acts as a kind
> of proxy server, and this difference in operational policy is what
> makes the difference. I have to say, GMX really knows what they're
> doing. v(^o^)

Yes.


-- 
Cheers / Saludos,

		Carlos E. R.
		(from 15.6 x86_64 at Telcontar)

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