Re: Sendmail on FreeBSD 14, gmail problem

I never did set up MX records for any of my domains (zefox.net, zefox.com
and zefox.org) but it hasn't caused trouble up to now. 

Let's take a look.

$ dig  zefox.net mx

;; ANSWER SECTION:
zefox.net. 85783 IN MX 0 www.zefox.net.zefox.net.

My goodness, that's wrong.

zefox.com and zefox.org have no MX or A record.  I am sure I am not the only
person who's configured his MTA to reject mail from bogus domains to which it
can't reply.

Also, none of them have any TXT records, which mean none of them have SPF records.

Set up some valid MX and SPF records and your mail will work a lot better.

Assuming the mail server at www.zefox.net is the one you want to use,
it would be a good idea to use a real SSL certificate rather than a
self-signed one. I see there's a web server on port 80, so set up an
SSL web server on port 443 and you can use the same cert.

Note that this has nothing to do with FreeBSD.  If you were running on linux
or SunOS you'd have the same problems.

--
Regards,
John Levine, johnl@taugh.com, Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. https://jl.ly