RetroBBS - comp.unix.bsd.freebsd.misc - Re: Sendmail on FreeBSD 14, gmail problem

Re: Sendmail on FreeBSD 14, gmail problem

<uvk8rt$ke$9@gallifrey.nk.ca>

https://www.rocksolidbbs.com/devel/article-flat.php?id=640&group=comp.unix.bsd.freebsd.misc#640

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From: doctor@doctor.nl2k.ab.ca (The Doctor)
Newsgroups: comp.mail.sendmail,comp.unix.bsd.freebsd.misc
Subject: Re: Sendmail on FreeBSD 14, gmail problem
Date: Mon, 15 Apr 2024 22:14:21 -0000 (UTC)
Organization: NetKnow News
Message-ID: <uvk8rt$ke$9@gallifrey.nk.ca>
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Originator: doctor@doctor.nl2k.ab.ca (The Doctor)

by: The Doctor - Mon, 15 Apr 2024 22:14 UTC

In article <uvk6r3$gkgb$1@dont-email.me>, <bp@www.zefox.net> wrote:
>John Levine <johnl@taugh.com> wrote:
>> According to <bp@www.zefox.net>:
>>>I've got a FreeBSD 14 host running sendmail from packages that works perfectly
>>>otherwise but can't be persuaded to communicate with gmail:
>>>(reason: 550-5.7.26 This mail has been blocked because the sender is
>unauthenticated.)
>>
>> Yup, that's a problem.
>>
>>>Is there a FreeBSD expert out there who can tell me what I've missed?
>>
>> Not until you tell us what the domain name is so we can tell you what
>> you're doing wrong. Most likely your sendmail setup is fine, but your
>> SPF and DKIM configations are missing or wrong.
>>
>
>This hostname is www.zefox.net, which makes the domain zefox.net IIUC.
>Nameservice is provided by ns1.zefox.net and ns2.zefox.net, also FreeBSD
>hosts running bind9.18 from packages.
>
>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.
>
>Thanks for writing!
>
>bob prohaska
>

Adding the FreeBSD group.
--
Member - Liberal International This is doctor@nk.ca Ici doctor@nk.ca
Yahweh, King & country!Never Satan President Republic!Beware AntiChrist rising!
Look at Psalms 14 and 53 on Atheism ; unsubscribe from Google Groups to be seen
What worth the power of law that won't stop lawlessness? -unknown

Re: Sendmail on FreeBSD 14, gmail problem

<44ttk2rv6e.fsf@be-well.ilk.org>

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From: lgusenet@be-well.ilk.org (Lowell Gilbert)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Sendmail on FreeBSD 14, gmail problem
Date: Mon, 15 Apr 2024 20:46:33 -0400
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by: Lowell Gilbert - Tue, 16 Apr 2024 00:46 UTC

doctor@doctor.nl2k.ab.ca (The Doctor) writes:

> In article <uvk6r3$gkgb$1@dont-email.me>, <bp@www.zefox.net> wrote:
>>John Levine <johnl@taugh.com> wrote:
>>> According to <bp@www.zefox.net>:
>>>>I've got a FreeBSD 14 host running sendmail from packages that works perfectly
>>>>otherwise but can't be persuaded to communicate with gmail:
>>>>(reason: 550-5.7.26 This mail has been blocked because the sender is
>>unauthenticated.)
>>>
>>> Yup, that's a problem.
>>>
>>>>Is there a FreeBSD expert out there who can tell me what I've missed?
>>>
>>> Not until you tell us what the domain name is so we can tell you what
>>> you're doing wrong. Most likely your sendmail setup is fine, but your
>>> SPF and DKIM configations are missing or wrong.
>>>
>>
>>This hostname is www.zefox.net, which makes the domain zefox.net IIUC.
>>Nameservice is provided by ns1.zefox.net and ns2.zefox.net, also FreeBSD
>>hosts running bind9.18 from packages.
>>
>>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.
>>
>>Thanks for writing!
>>
>>bob prohaska
>>
>
> Adding the FreeBSD group.

The advice I would give has already been provided in the thread.

By John Levine, I think.

--
Lowell Gilbert, embedded/networking software engineer
http://be-well.ilk.org/~lowell/

Re: Sendmail on FreeBSD 14, gmail problem

<uvkkcq$j8ha$1@dont-email.me>

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From: <bp@www.zefox.net>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Sendmail on FreeBSD 14, gmail problem
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by: <bp@www.zefox.net> - Tue, 16 Apr 2024 01:31 UTC

Lowell Gilbert <lgusenet@be-well.ilk.org> wrote:
> doctor@doctor.nl2k.ab.ca (The Doctor) writes:
>
>> In article <uvk6r3$gkgb$1@dont-email.me>, <bp@www.zefox.net> wrote:
>>>John Levine <johnl@taugh.com> wrote:
>>>> According to <bp@www.zefox.net>:
>>>>>I've got a FreeBSD 14 host running sendmail from packages that works perfectly
>>>>>otherwise but can't be persuaded to communicate with gmail:
>>>>>(reason: 550-5.7.26 This mail has been blocked because the sender is
>>>unauthenticated.)
>>>>
>>>> Yup, that's a problem.
>>>>
>>>>>Is there a FreeBSD expert out there who can tell me what I've missed?
>>>>
>>>> Not until you tell us what the domain name is so we can tell you what
>>>> you're doing wrong. Most likely your sendmail setup is fine, but your
>>>> SPF and DKIM configations are missing or wrong.
>>>>
>>>
>>>This hostname is www.zefox.net, which makes the domain zefox.net IIUC.
>>>Nameservice is provided by ns1.zefox.net and ns2.zefox.net, also FreeBSD
>>>hosts running bind9.18 from packages.
>>>
>>>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.
>>>
>>>Thanks for writing!
>>>
>>>bob prohaska
>>>
>>
>> Adding the FreeBSD group.
>
> The advice I would give has already been provided in the thread.
>
> By John Levine, I think.
Can you post a link or reference? Hopefully I missed something.
The name John Levine isn't among my correspondents.

Thanks for writing,

bob prohaska

Re: Sendmail on FreeBSD 14, gmail problem

<uvkkvh$37p$1@gal.iecc.com>

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From: johnl@taugh.com (John Levine)
Newsgroups: comp.mail.sendmail,comp.unix.bsd.freebsd.misc
Subject: Re: Sendmail on FreeBSD 14, gmail problem
Date: Tue, 16 Apr 2024 01:41:05 -0000 (UTC)
Organization: Taughannock Networks
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by: John Levine - Tue, 16 Apr 2024 01:41 UTC

>>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

Re: Sendmail on FreeBSD 14, gmail problem

<44jzkwzur4.fsf@be-well.ilk.org>

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From: lgusenet@be-well.ilk.org (Lowell Gilbert)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Sendmail on FreeBSD 14, gmail problem
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by: Lowell Gilbert - Wed, 17 Apr 2024 00:40 UTC

<bp@www.zefox.net> writes:

> Lowell Gilbert <lgusenet@be-well.ilk.org> wrote:
>> doctor@doctor.nl2k.ab.ca (The Doctor) writes:
>>
>>> In article <uvk6r3$gkgb$1@dont-email.me>, <bp@www.zefox.net> wrote:
>>>>John Levine <johnl@taugh.com> wrote:
>>>>> According to <bp@www.zefox.net>:
>>>>>>I've got a FreeBSD 14 host running sendmail from packages that works perfectly
>>>>>>otherwise but can't be persuaded to communicate with gmail:
>>>>>>(reason: 550-5.7.26 This mail has been blocked because the sender is
>>>>unauthenticated.)
>>>>>
>>>>> Yup, that's a problem.
>>>>>
>>>>>>Is there a FreeBSD expert out there who can tell me what I've missed?
>>>>>
>>>>> Not until you tell us what the domain name is so we can tell you what
>>>>> you're doing wrong. Most likely your sendmail setup is fine, but your
>>>>> SPF and DKIM configations are missing or wrong.
>>>>>
>>>>
>>>>This hostname is www.zefox.net, which makes the domain zefox.net IIUC.
>>>>Nameservice is provided by ns1.zefox.net and ns2.zefox.net, also FreeBSD
>>>>hosts running bind9.18 from packages.
>>>>
>>>>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.
>>>>
>>>>Thanks for writing!
>>>>
>>>>bob prohaska
>>>>
>>>
>>> Adding the FreeBSD group.
>>
>> The advice I would give has already been provided in the thread.
>>
>> By John Levine, I think.
> Can you post a link or reference? Hopefully I missed something.
> The name John Levine isn't among my correspondents.

It's literally in the message you sent.

Track the attributions for his name.

Re: Sendmail on FreeBSD 14, gmail problem

<uvq4go$226li$1@dont-email.me>

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by: <bp@www.zefox.net> - Thu, 18 Apr 2024 03:36 UTC

Lowell Gilbert <lgusenet@be-well.ilk.org> wrote:
>
> It's literally in the message you sent.
>
> Track the attributions for his name.

Apologies for the confusion, eventually I figured it out.

Thanks for writing,

bob prohaska

"Whip me. Beat me. Make me maintain AIX." (By Stephan Zielinski)

devel / comp.unix.bsd.freebsd.misc / Re: Sendmail on FreeBSD 14, gmail problem

Subject	Author
Re: Sendmail on FreeBSD 14, gmail problem	The Doctor
Re: Sendmail on FreeBSD 14, gmail problem	Lowell Gilbert
Re: Sendmail on FreeBSD 14, gmail problem	<bp
Re: Sendmail on FreeBSD 14, gmail problem	Lowell Gilbert
Re: Sendmail on FreeBSD 14, gmail problem	<bp
Re: Sendmail on FreeBSD 14, gmail problem	John Levine