[BCLUG] Interesting email about domain expiring - SPF vs SPAM question

[BCLUG]

BCLUG wrote on 2022-08-19 03:21:

>> So, I'd say, lost "a", too.
> 
> That one definitely needs changing, because it's an incorrect use of 
> "a", should be "ip4".
> 
> Somehow I (incorrectly) thought that a "mechanism" of "a" meant "the
> sender has a DNS A record", instead of the correct "Authorize mail 
> servers by domain name".
> 
> That's a pretty big mistake.
> 
> But, I'll keep it as an "ip4" so my home-based server can send 
> occasional emails.

This part I had to get a second opinion on (the "a" mechanism).

https://en.wikipedia.org/wiki/Sender_Policy_Framework#Mechanisms

> A 	If the domain name has an address record (A or AAAA) that can be 
> resolved to the sender's address, it will match.


So, my original idea was correct and Google's link was incorrect.

Interesting! I've submitted feedback to Google at 
https://support.google.com/a/answer/10683907



This has been an interesting and valuable learning process.