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Re: mail @example.com without dns a-record for example.com

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Salvador Mirzo  wrote:

> The objective here is just learning how things work.  I asked

You might want to read the fine RFCs, e.g., RFC 5321
5.1.  Locating the Target Host
....
   The lookup first attempts to locate an MX record associated with the
   name. [[...]]

> myself---is it possible to get mail sent to someone@example.com without
> an a-record fore example.com?  I think the answer should be ``yes''

Correct.

> But after the deletion of the a-record example.com, I noticed Gmail

Since you haven't given real data it's hard to say what you did
wrong. Maybe your MX record is incorrect or hasn't propagated yet.

-- 
Note: please read the netiquette before posting. I will almost never
reply to top-postings which include a full copy of the previous
article(s) at the end because it's annoying, shows that the poster
is too lazy to trim his article, and it's wasting the time of all readers.

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mail @example.com without dns a-record for example.com Salvador Mirzo <smirzo@example.com> - 2024-12-22 13:05 -0300
  Re: mail @example.com without dns a-record for example.com Grant Taylor <gtaylor@tnetconsulting.net> - 2024-12-22 10:36 -0600
  Re: mail @example.com without dns a-record for example.com Claus Aßmann <INVALID_NO_CC_REMOVE_IF_YOU_DO_NOT_POST_ml+sendmail(-no-copies-please)@esmtp.org> - 2024-12-22 12:22 -0500
    Re: mail @example.com without dns a-record for example.com Salvador Mirzo <smirzo@example.com> - 2024-12-23 10:18 -0300
  Re: mail @example.com without dns a-record for example.com kalevi@kolttonen.fi (Kalevi Kolttonen) - 2024-12-22 18:07 +0000
    Re: mail @example.com without dns a-record for example.com Grant Taylor <gtaylor@tnetconsulting.net> - 2024-12-22 22:07 -0600
      Re: mail @example.com without dns a-record for example.com Salvador Mirzo <smirzo@example.com> - 2024-12-23 10:23 -0300
  Re: mail @example.com without dns a-record for example.com John Levine <johnl@taugh.com> - 2024-12-22 21:00 +0000
    Re: mail @example.com without dns a-record for example.com Salvador Mirzo <smirzo@example.com> - 2024-12-23 10:08 -0300
      Re: mail @example.com without dns a-record for example.com Salvador Mirzo <smirzo@example.com> - 2024-12-23 22:01 -0300

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