Re: [ SOLVED ] Re: A bit off-topic: problems with sending to a Gmail user

2022-10-19 Thread Tim Chase
On 2022-10-19 07:43, Cameron Simpson wrote:
> On 17Oct2022 21:19, Tim Chase  wrote:
> >I found that I had to both set my SPF for the sending-server (in
> >my case, my VPS is the sender, rather than outsourcing to a smart-host
> >elsewhere),
> 
> I tried that for us, but some places reject email from our cloud server,
> which is an AWS VM. So the home server runs outbound mail for some/all
> things through the ISP smart host.

Some IP ranges (particularly cloud-service instances which spin up
& down and may have different hosts appearing at the same IP addres)
also have trouble.  For mine, I had the instance running (on the
same IP) for a year or two before I decided to move my mail
functionality there, so I knew it didn't have a history of recently
spamming other hosts.

Similarly, home ISP ranges are also often rejected because the rDNS
resolves to something auto-generated rather than the actual
domain-name.

Just in case you're looking for other tilt-bits that might be used
when rejecting messages.

-tkc







Re: [ SOLVED ] Re: A bit off-topic: problems with sending to a Gmail user

2022-10-18 Thread Cameron Simpson

On 17Oct2022 21:19, Tim Chase  wrote:

I found that I had to both set my SPF for the sending-server (in
my case, my VPS is the sender, rather than outsourcing to a smart-host
elsewhere),


I tried that for us, but some places reject email from our cloud server, 
which is an AWS VM. So the home server runs outbound mail for some/all 
things through the ISP smart host.


And, regrettably, our phones kind of inherently use their telco/ISP 
smart host.  (Hmm, maybe wireguard would let us securely use the AWS 
host as a smart host).


Cheers,
Cameron Simpson 


Re: [ SOLVED ] Re: A bit off-topic: problems with sending to a Gmail user

2022-10-17 Thread Tim Chase
On 2022-10-18 08:07, Cameron Simpson wrote:
> On 17Oct2022 09:48, Matthias Apitz  wrote:
> >As more and more of my mails, also to friends could not reach them
> >@google.com, I studied the DNS record for SPF a bit and came up with
> >this single line in my DNS:
> >
> >@ TXT v=spf1 ip4:178.254.4.101 include:unixare.de -all
> 
> I've just read up on this and have added an include for the ISP we often
> send through. I'll be interested to see if delivery to gmail.com improves
> for me - my own symptom is usually that they shunt my messages to spam/junk
> instead of bouncing them, so this may well not help me.

I found that I had to both set my SPF for the sending-server (in
my case, my VPS is the sender, rather than outsourcing to a smart-host
elsewhere), and I need to set up DKIM (putting my server's public
key in DNS, and then signing outbound mail) to get the best results
with Gmail.  Otherwise, things kept ending up in Spam -- even when
I was sending to my test Gmail account and the sender (me) was a
known contact in the Gmail account, and back-and-forth replies had
all the right in-reference-to headers set properly.  I haven't yet
messed with DANE, but SPF+DKIM seems to be enough to make Gmail
less grumpy.  Gmail is a bit fastidious, rejecting messages
overzealously.  But they're the 800lb gorilla in the game.

-tkc







Re: [ SOLVED ] Re: A bit off-topic: problems with sending to a Gmail user

2022-10-17 Thread Cameron Simpson

On 17Oct2022 09:48, Matthias Apitz  wrote:

El día sábado, marzo 12, 2022 a las 11:12:49a. m. +, Claus Assmann escribió:

On Fri, Mar 11, 2022, Stefan Hagen wrote:
> > > 550-5.7.26 This message does not have authentication 
> > > information or fails to


> Authenticated in this context means, you don't have SPF / DKIM / DMARC set up.

[,,,]


As more and more of my mails, also to friends could not reach them
@google.com, I studied the DNS record for SPF a bit and came up with
this single line in my DNS:

@ TXT v=spf1 ip4:178.254.4.101 include:unixare.de -all

and all is fine now.


Thank you!

I've just read up on this and have added an include for the ISP we often 
send through. I'll be interested to see if delivery to gmail.com 
improves for me - my own symptom is usually that they shunt my messages 
to spam/junk instead of bouncing them, so this may well not help me.


But I was unaware of "include" before now.

Cheers,
Cameron Simpson 


[ SOLVED ] Re: A bit off-topic: problems with sending to a Gmail user

2022-10-17 Thread Matthias Apitz
El día sábado, marzo 12, 2022 a las 11:12:49a. m. +, Claus Assmann escribió:

> On Fri, Mar 11, 2022, Stefan Hagen wrote:
> 
> > > > 550-5.7.26 This message does not have authentication information or 
> > > > fails to
> 
> > Authenticated in this context means, you don't have SPF / DKIM / DMARC set 
> > up.
> 
> [more off-topic/rant]
> Isn't it nice how Google et.al. enforce things which are
> neither mandatory nor really useful to "fight spam"?
> All the spam I get at $WORK is from gmail and it has passed
> all of those "requirements" -- but the "investment"/"loan"/...
> spam/scams are not filtered at all by Google themselves
> (hey, why should they do outbound spam filtering? it cost them money
> and why should they care? it's not like anyone important would block
> gmail -- but Google rejects mail coming to them due to bogus reasons).
> 
> "Solution": ask gmail users to switch to other services which do
> not have so many "false positives".
> 
> PS: maybe there is an option in gmail for users to whitelist senders
> from whom they want to receive mail?

As more and more of my mails, also to friends could not reach them
@google.com, I studied the DNS record for SPF a bit and came up with
this single line in my DNS:

@ TXT v=spf1 ip4:178.254.4.101 include:unixare.de -all

and all is fine now.

matthias


-- 
Matthias Apitz, ✉ g...@unixarea.de, http://www.unixarea.de/ +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub

Schluß mit dem (Wirtschafts-) Krieg gegen Rußland! Schluß mit den Sanktionen!
Druschba / Дружба mit Rußland statt NATO-Krieg gegen Rußland!


Re: A bit off-topic: problems with sending to a Gmail user

2022-03-12 Thread raf
On Sat, Mar 12, 2022 at 09:03:37AM +0100, Matthias Apitz  
wrote:

> El día viernes, marzo 11, 2022 a las 03:12:41p. m. +0100, Stefan Hagen 
> escribió:
> 
> > > I've been seeing a lot of that lately.  Google seem to have tightened
> > > their email security practice recently.
> > > 
> > > It appears that 1blu is doing something that GMail doesn't like.  They
> > > probably have a number of users who have the same problem.  I would
> > > ask them to check their MTA configuration against the section "Make
> > > sure your messages are authenticated" in the referenced page
> > > (https://support.google.com/mail/answer/81126#authentication).
> > > 
> > > > 550-5.7.26 This message does not have authentication information or 
> > > > fails to
> > > > 550-5.7.26 pass authentication checks. To best protect our users 
> > > > from spam, the
> > > > 550-5.7.26 message has been blocked. Please visit
> > 
> > Authenticated in this context means, you don't have SPF / DKIM / DMARC set 
> > up.
> > 
> > You can use this service: https://www.mail-tester.com to test your
> > setup. It provices you an email address. Send an email to it
> > and then your mail and server setup will be evaluated.
> 
> Thank you, Stefan.
> 
> I did such a test and the result can be seen here: 
> https://www.mail-tester.com/test-ahwup3i9z
> 
> > This is an example from me:
> > https://www.mail-tester.com/test-3ghr082f2
> > 
> > Feel free to examine it and set your host up in a similiar way.
> 
> As far as I understand all the changes can't be done on my host (a
> laptop). I send mails with mutt and mutt with sendmail to smtp.1blu.de
> 
> And I'm afraid, if I contact the support of 1blu I don't know if they will
> react (I've mixed experience from the past). I will give it a try...
> 
> Thanks
> 
>   matthias
> 
> -- 
> Matthias Apitz, ✉ g...@unixarea.de, http://www.unixarea.de/ +49-176-38902045
> Public GnuPG key: http://www.unixarea.de/key.pub

So it looks like the real problem might be "You're
listed in 1 blacklist" (http://www.backscatterer.org).
Try to get removed from it. Good luck. It sounds like
the mail server you are using needs a configuration
change to stop backscatter. Perhaps you could direct
your mail server providers to that site.

cheers,
raf



Re: A bit off-topic: problems with sending to a Gmail user

2022-03-12 Thread raf
On Fri, Mar 11, 2022 at 11:55:04PM +, Ken Moffat  
wrote:

> On Sat, Mar 12, 2022 at 09:10:01AM +1100, raf wrote:
> > On Fri, Mar 11, 2022 at 03:12:41PM +0100, Stefan Hagen
> >  wrote:
> > 
> > > > 
> > > > > 550-5.7.26 This message does not have authentication
> > > > > information or fails to 550-5.7.26 pass authentication
> > > > > checks. To best protect our users from spam, the
> > > > > 550-5.7.26 message has been blocked. Please visit
> > > 
> > > Authenticated in this context means, you don't have SPF / DKIM /
> > > DMARC set up.
> > 
> > That's sad. I'm pretty sure that the absence of SPF/DKIM/DMARC was
> > never supposed to be interpreted as a failure of any of them.
> > Perhaps the sending domain does have SPF but it's not setup
> > correctly. It doesn't seem to (unixarea.de).
> > 
> What is *really* sad is that most of the spam which gets through
> direct to this account of mine is things apparently from gmail
> addresses, pointing to ntlworld/somewhereelse.com addresses inviting
> me to login, and with DKIM apparently passing (the last couple I
> looked at were relaxed/relaxed).
>
> ĸen
> -- 
> The beauty of reading a page of de Selby is that it leads one
> inescapably to the conclusion that one is not, of all nincompoops,
> the greatest.-- du Garbandier

That's probably not because it's relaxed/relaxed. It's just 
that when spammers use gmail to send spam, gmail happily
and correctly DKIM-signs the outgoing spam. Gmail only protects
gmails users from receiving spam. It doesn't stop them sending
spam. At least, that's what seems to be the case.

cheers,
raf



Re: A bit off-topic: problems with sending to a Gmail user

2022-03-12 Thread Ofer Inbar
> PS: maybe there is an option in gmail for users to whitelist senders
> from whom they want to receive mail?

Yes, sort of.  There is no absolute whitelist, but there are two
things a gmail user can do to make it much less likely that mail
from a particular sender is marked as spam.

1. Have that sender in their contacts.

2. After receiving an email from that sender that does go to spam,
click "not spam" on it.  Sometimes you can arrange this by private
messaging with someone as you send them email, and have them check
spam for the email you just sent and click "not spam" while you're
talking.
  -- Cos


Re: A bit off-topic: problems with sending to a Gmail user

2022-03-12 Thread Joerg Dorchain
On Sat, Mar 12, 2022 at 12:09:01PM +0100, Matthias Apitz wrote:
> El día sábado, marzo 12, 2022 a las 10:05:35 +0100, Joerg Dorchain
> escribió:
> 
> > Let's go through that:
> > 
> > - An SPF-entry has to be created in the unixarea.de domain, I would assume 
> > you can do that via the
> >   interface of 1blu.de
> > 
> > - DKIM-headers can be inserted locally. If you do that with a selector 
> > under the unixarea.de domain, you
> >   have to add the corresponding key in the zone. I would assume you can do 
> > that via the interface of 1blu.de
> >   Alternatively dkim can be implemented at the 1blu.de MTA, which in turn 
> > is solely at their discretion.
> > 
> > - Same for a DMARC-entry.
> > 
> > This would make most sense when you enable DNSSEC for the unixarea.de 
> > domain.  Check here:
> > https://dnsviz.net/d/unixarea.de/dnssec/ I would assume you can do that via 
> > the interface of 1blu.de.
> > 
> 
> Joerg, 1blu is a German ISP where I have rented:
> 
> - a domain 'unixare.de'
> - a web space www.unixarea.de on some of its servers
> - a mail addr g...@unixarea.de which ends up in mbox on its servers and I can
>   read mail with IMAP or some webmail software; and I can send mail with
>   SMTP to one its MTA (smt.1blu.de)
> - SSH access to an unpriv account on the server to put/get files to/from
>   the web space www.unixarea.de
> 
> I have no access to any DNS configurations and so I do not see how to
> follow your hints.

That then sounds like talking to their support and eventually reconsidering 
your position to 1blu or
gmail.

You are definitivly not the only one having problems with mail from or to gmail 
accounts.

Bye,

Joerg



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Re: A bit off-topic: problems with sending to a Gmail user

2022-03-12 Thread Claus Assmann
On Fri, Mar 11, 2022, Stefan Hagen wrote:

> > > 550-5.7.26 This message does not have authentication information or 
> > > fails to

> Authenticated in this context means, you don't have SPF / DKIM / DMARC set up.

[more off-topic/rant]
Isn't it nice how Google et.al. enforce things which are
neither mandatory nor really useful to "fight spam"?
All the spam I get at $WORK is from gmail and it has passed
all of those "requirements" -- but the "investment"/"loan"/...
spam/scams are not filtered at all by Google themselves
(hey, why should they do outbound spam filtering? it cost them money
and why should they care? it's not like anyone important would block
gmail -- but Google rejects mail coming to them due to bogus reasons).

"Solution": ask gmail users to switch to other services which do
not have so many "false positives".

PS: maybe there is an option in gmail for users to whitelist senders
from whom they want to receive mail?


Re: A bit off-topic: problems with sending to a Gmail user

2022-03-12 Thread Matthias Apitz
El día sábado, marzo 12, 2022 a las 10:05:35 +0100, Joerg Dorchain escribió:

> Let's go through that:
> 
> - An SPF-entry has to be created in the unixarea.de domain, I would assume 
> you can do that via the
>   interface of 1blu.de
> 
> - DKIM-headers can be inserted locally. If you do that with a selector under 
> the unixarea.de domain, you
>   have to add the corresponding key in the zone. I would assume you can do 
> that via the interface of 1blu.de
>   Alternatively dkim can be implemented at the 1blu.de MTA, which in turn is 
> solely at their discretion.
> 
> - Same for a DMARC-entry.
> 
> This would make most sense when you enable DNSSEC for the unixarea.de domain. 
>  Check here:
> https://dnsviz.net/d/unixarea.de/dnssec/ I would assume you can do that via 
> the interface of 1blu.de.
> 

Joerg, 1blu is a German ISP where I have rented:

- a domain 'unixare.de'
- a web space www.unixarea.de on some of its servers
- a mail addr g...@unixarea.de which ends up in mbox on its servers and I can
  read mail with IMAP or some webmail software; and I can send mail with
  SMTP to one its MTA (smt.1blu.de)
- SSH access to an unpriv account on the server to put/get files to/from
  the web space www.unixarea.de

I have no access to any DNS configurations and so I do not see how to
follow your hints.

Thanks anyway

matthias
-- 
Matthias Apitz, ✉ g...@unixarea.de, http://www.unixarea.de/ +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub


Re: A bit off-topic: problems with sending to a Gmail user

2022-03-12 Thread Joerg Dorchain
On Sat, Mar 12, 2022 at 09:03:37AM +0100, Matthias Apitz wrote:
> 
> > > I've been seeing a lot of that lately.  Google seem to have tightened
> > > their email security practice recently.
> > > 
> > > It appears that 1blu is doing something that GMail doesn't like.  They
> > > probably have a number of users who have the same problem.  I would
> > > ask them to check their MTA configuration against the section "Make
> > > sure your messages are authenticated" in the referenced page
> > > (https://support.google.com/mail/answer/81126#authentication).
> > > 
> > > > 550-5.7.26 This message does not have authentication information or 
> > > > fails to
> > > > 550-5.7.26 pass authentication checks. To best protect our users 
> > > > from spam, the
> > > > 550-5.7.26 message has been blocked. Please visit
> > 
> > Authenticated in this context means, you don't have SPF / DKIM / DMARC set 
> > up.
> > 
> > You can use this service: https://www.mail-tester.com to test your
> > setup. It provices you an email address. Send an email to it
> > and then your mail and server setup will be evaluated.
> 
> Thank you, Stefan.
> 
> I did such a test and the result can be seen here: 
> https://www.mail-tester.com/test-ahwup3i9z

Let's go through that:

- An SPF-entry has to be created in the unixarea.de domain, I would assume you 
can do that via the
  interface of 1blu.de

- DKIM-headers can be inserted locally. If you do that with a selector under 
the unixarea.de domain, you
  have to add the corresponding key in the zone. I would assume you can do that 
via the interface of 1blu.de
  Alternatively dkim can be implemented at the 1blu.de MTA, which in turn is 
solely at their discretion.

- Same for a DMARC-entry.

This would make most sense when you enable DNSSEC for the unixarea.de domain.  
Check here:
https://dnsviz.net/d/unixarea.de/dnssec/ I would assume you can do that via the 
interface of 1blu.de.

Bye,

Joerg


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Re: A bit off-topic: problems with sending to a Gmail user

2022-03-12 Thread Matthias Apitz
El día viernes, marzo 11, 2022 a las 03:12:41p. m. +0100, Stefan Hagen escribió:

> > I've been seeing a lot of that lately.  Google seem to have tightened
> > their email security practice recently.
> > 
> > It appears that 1blu is doing something that GMail doesn't like.  They
> > probably have a number of users who have the same problem.  I would
> > ask them to check their MTA configuration against the section "Make
> > sure your messages are authenticated" in the referenced page
> > (https://support.google.com/mail/answer/81126#authentication).
> > 
> > > 550-5.7.26 This message does not have authentication information or 
> > > fails to
> > > 550-5.7.26 pass authentication checks. To best protect our users from 
> > > spam, the
> > > 550-5.7.26 message has been blocked. Please visit
> 
> Authenticated in this context means, you don't have SPF / DKIM / DMARC set up.
> 
> You can use this service: https://www.mail-tester.com to test your
> setup. It provices you an email address. Send an email to it
> and then your mail and server setup will be evaluated.

Thank you, Stefan.

I did such a test and the result can be seen here: 
https://www.mail-tester.com/test-ahwup3i9z

> This is an example from me:
> https://www.mail-tester.com/test-3ghr082f2
> 
> Feel free to examine it and set your host up in a similiar way.

As far as I understand all the changes can't be done on my host (a
laptop). I send mails with mutt and mutt with sendmail to smtp.1blu.de

And I'm afraid, if I contact the support of 1blu I don't know if they will
react (I've mixed experience from the past). I will give it a try...

Thanks

matthias

-- 
Matthias Apitz, ✉ g...@unixarea.de, http://www.unixarea.de/ +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub


Re: A bit off-topic: problems with sending to a Gmail user

2022-03-11 Thread Ken Moffat
On Sat, Mar 12, 2022 at 09:10:01AM +1100, raf wrote:
> On Fri, Mar 11, 2022 at 03:12:41PM +0100, Stefan Hagen
>  wrote:
> 
> > > 
> > > > 550-5.7.26 This message does not have authentication
> > > > information or fails to 550-5.7.26 pass authentication
> > > > checks. To best protect our users from spam, the
> > > > 550-5.7.26 message has been blocked. Please visit
> > 
> > Authenticated in this context means, you don't have SPF / DKIM /
> > DMARC set up.
> 
> That's sad. I'm pretty sure that the absence of SPF/DKIM/DMARC was
> never supposed to be interpreted as a failure of any of them.
> Perhaps the sending domain does have SPF but it's not setup
> correctly. It doesn't seem to (unixarea.de).
> 
What is *really* sad is that most of the spam which gets through
direct to this account of mine is things apparently from gmail
addresses, pointing to ntlworld/somewhereelse.com addresses inviting
me to login, and with DKIM apparently passing (the last couple I
looked at were relaxed/relaxed).

ĸen
-- 
The beauty of reading a page of de Selby is that it leads one
inescapably to the conclusion that one is not, of all nincompoops,
the greatest.-- du Garbandier


Re: A bit off-topic: problems with sending to a Gmail user

2022-03-11 Thread raf
On Fri, Mar 11, 2022 at 03:12:41PM +0100, Stefan Hagen  
wrote:

> Mark H. Wood wrote (2022-03-11 14:40 CET):
> > On Fri, Mar 11, 2022 at 11:43:53AM +0100, Matthias Apitz wrote:
> > > I know, it's not the fault of our beloved mutt, but maybe someone is or
> > > was in the same problem and knows a solution...
> > > 
> > > We (my family) are member of a fisherman association and I have to send
> > > mails to one of the head members in charge for youth training. He has a
> > > Google mail account as  and any mail gets rejected by
> > > Google with the response below.
> > 
> > I've been seeing a lot of that lately.  Google seem to have tightened
> > their email security practice recently.
> > 
> > It appears that 1blu is doing something that GMail doesn't like.  They
> > probably have a number of users who have the same problem.  I would
> > ask them to check their MTA configuration against the section "Make
> > sure your messages are authenticated" in the referenced page
> > (https://support.google.com/mail/answer/81126#authentication).
> > 
> > > 550-5.7.26 This message does not have authentication information or 
> > > fails to
> > > 550-5.7.26 pass authentication checks. To best protect our users from 
> > > spam, the
> > > 550-5.7.26 message has been blocked. Please visit
> 
> Authenticated in this context means, you don't have SPF / DKIM / DMARC set up.

That's sad. I'm pretty sure that the absence of SPF/DKIM/DMARC
was never supposed to be interpreted as a failure of any of them.
Perhaps the sending domain does have SPF but it's not
setup correctly. It doesn't seem to (unixarea.de).

> You can use this service: https://www.mail-tester.com to test your
> setup. It provices you an email address. Send an email to it
> and then your mail and server setup will be evaluated.
> 
> This is an example from me:
> https://www.mail-tester.com/test-3ghr082f2
> 
> Feel free to examine it and set your host up in a similiar way.

A good tutorial site for setting it up (at least with debian+postfix) is at
https://www.linuxbabe.com/mail-server/build-email-server-from-scratch-debian-postfix-smtp
(in 12 parts, part 4 is SPF+DKIM, part 5 is DMARC).

> Best Regards,
> Stefan

cheers,
raf



Re: A bit off-topic: problems with sending to a Gmail user

2022-03-11 Thread Stefan Hagen
Mark H. Wood wrote (2022-03-11 14:40 CET):
> On Fri, Mar 11, 2022 at 11:43:53AM +0100, Matthias Apitz wrote:
> > I know, it's not the fault of our beloved mutt, but maybe someone is or
> > was in the same problem and knows a solution...
> > 
> > We (my family) are member of a fisherman association and I have to send
> > mails to one of the head members in charge for youth training. He has a
> > Google mail account as  and any mail gets rejected by
> > Google with the response below.
> 
> I've been seeing a lot of that lately.  Google seem to have tightened
> their email security practice recently.
> 
> It appears that 1blu is doing something that GMail doesn't like.  They
> probably have a number of users who have the same problem.  I would
> ask them to check their MTA configuration against the section "Make
> sure your messages are authenticated" in the referenced page
> (https://support.google.com/mail/answer/81126#authentication).
> 
> > 550-5.7.26 This message does not have authentication information or 
> > fails to
> > 550-5.7.26 pass authentication checks. To best protect our users from 
> > spam, the
> > 550-5.7.26 message has been blocked. Please visit

Authenticated in this context means, you don't have SPF / DKIM / DMARC set up.

You can use this service: https://www.mail-tester.com to test your
setup. It provices you an email address. Send an email to it
and then your mail and server setup will be evaluated.

This is an example from me:
https://www.mail-tester.com/test-3ghr082f2

Feel free to examine it and set your host up in a similiar way.

Best Regards,
Stefan


Re: A bit off-topic: problems with sending to a Gmail user

2022-03-11 Thread Mark H. Wood
On Fri, Mar 11, 2022 at 11:43:53AM +0100, Matthias Apitz wrote:
> I know, it's not the fault of our beloved mutt, but maybe someone is or
> was in the same problem and knows a solution...
> 
> We (my family) are member of a fisherman association and I have to send
> mails to one of the head members in charge for youth training. He has a
> Google mail account as  and any mail gets rejected by
> Google with the response below.

I've been seeing a lot of that lately.  Google seem to have tightened
their email security practice recently.

It appears that 1blu is doing something that GMail doesn't like.  They
probably have a number of users who have the same problem.  I would
ask them to check their MTA configuration against the section "Make
sure your messages are authenticated" in the referenced page
(https://support.google.com/mail/answer/81126#authentication).

> - Forwarded message from Mail Delivery System 
>  -
> 
> Date: Thu, 10 Mar 2022 18:48:05 +0100
> From: Mail Delivery System 
> To: g...@unixarea.de
> Subject: Mail delivery failed: returning message to sender
> 
> This message was created automatically by mail delivery software.
> 
> A message that you sent could not be delivered to one or more of its
> recipients. This is a permanent error. The following address(es) failed:
> 
>   xxx@gmail.com
> host gmail-smtp-in.l.google.com [74.125.133.26]
> SMTP error from remote mail server after pipelined end of data:
> 550-5.7.26 This message does not have authentication information or fails 
> to
> 550-5.7.26 pass authentication checks. To best protect our users from 
> spam, the
> 550-5.7.26 message has been blocked. Please visit
> 550-5.7.26  https://support.google.com/mail/answer/81126#authentication 
> for more
> 550 5.7.26 information. 
> x6-20020a7bc20600b003826d797674si3455029wmi.29 - gsmtp
> 
> Reporting-MTA: dns; ms-10.1blu.de
> 
> Action: failed
> Final-Recipient: rfc822;xxx@gmail.com
> Status: 5.0.0
> Remote-MTA: dns; gmail-smtp-in.l.google.com
> Diagnostic-Code: smtp; 550-5.7.26 This message does not have authentication 
> information or fails to
>  550-5.7.26 pass authentication checks. To best protect our users from spam, 
> the
>  550-5.7.26 message has been blocked. Please visit
>  550-5.7.26  https://support.google.com/mail/answer/81126#authentication for 
> more
>  550 5.7.26 information. x6-20020a7bc20600b003826d797674si3455029wmi.29 - 
> gsmtp
> 
> Return-path: 
> Received: from [188.174.56.186] (helo=fritz.box)
>   by ms-10.1blu.de with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
>   (Exim 4.90_1)
>   (envelope-from )
>   id 1nSMtR-00015i-BW
>   for xxx@gmail.com; Thu, 10 Mar 2022 18:48:05 +0100
> Date: Thu, 10 Mar 2022 17:48:04 +
> From: Matthias Apitz 
> Reply-To: Matthias Apitz 
> To: xxx yyy 
> Subject: Fwd: Re: Jugendfischen 2022
> Content-Type: text/plain; charset=utf-8
> Content-Transfer-Encoding: quoted-printable
> Message-ID: 
> MIME-Version: 1.0
> X-Con-Id: 51246
> X-Con-U: 0-guru
> 
> 
> 
> - End forwarded message -
> 
> -- 
> Matthias Apitz, ✉ g...@unixarea.de, http://www.unixarea.de/ +49-176-38902045
> Public GnuPG key: http://www.unixarea.de/key.pub
> 

-- 
Mark H. Wood
Lead Technology Analyst

University Library
Indiana University - Purdue University Indianapolis
755 W. Michigan Street
Indianapolis, IN 46202
317-274-0749
www.ulib.iupui.edu


signature.asc
Description: PGP signature


Re: A bit off-topic: problems with sending to a Gmail user

2022-03-11 Thread Byung-Hee HWANG
Dear Matthias,

Matthias Apitz  writes:

> [...thanks...]
> We (my family) are member of a fisherman association and I have to send
> mails to one of the head members in charge for youth training. He has a
> Google mail account as  and any mail gets rejected by
> Google with the response below.
>
> Any idea what I could do?

Gmail like RFC 6376, i guess...

Sincerely, Byung-Hee

-- 
^고맙습니다 _和合團結_ 감사합니다_^))//


A bit off-topic: problems with sending to a Gmail user

2022-03-11 Thread Matthias Apitz


Hello,

I know, it's not the fault of our beloved mutt, but maybe someone is or
was in the same problem and knows a solution...

We (my family) are member of a fisherman association and I have to send
mails to one of the head members in charge for youth training. He has a
Google mail account as  and any mail gets rejected by
Google with the response below.

Any idea what I could do?

Thanks in advance

matthias


- Forwarded message from Mail Delivery System  
-

Date: Thu, 10 Mar 2022 18:48:05 +0100
From: Mail Delivery System 
To: g...@unixarea.de
Subject: Mail delivery failed: returning message to sender

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  xxx@gmail.com
host gmail-smtp-in.l.google.com [74.125.133.26]
SMTP error from remote mail server after pipelined end of data:
550-5.7.26 This message does not have authentication information or fails to
550-5.7.26 pass authentication checks. To best protect our users from spam, 
the
550-5.7.26 message has been blocked. Please visit
550-5.7.26  https://support.google.com/mail/answer/81126#authentication for 
more
550 5.7.26 information. x6-20020a7bc20600b003826d797674si3455029wmi.29 
- gsmtp

Reporting-MTA: dns; ms-10.1blu.de

Action: failed
Final-Recipient: rfc822;xxx@gmail.com
Status: 5.0.0
Remote-MTA: dns; gmail-smtp-in.l.google.com
Diagnostic-Code: smtp; 550-5.7.26 This message does not have authentication 
information or fails to
 550-5.7.26 pass authentication checks. To best protect our users from spam, the
 550-5.7.26 message has been blocked. Please visit
 550-5.7.26  https://support.google.com/mail/answer/81126#authentication for 
more
 550 5.7.26 information. x6-20020a7bc20600b003826d797674si3455029wmi.29 - 
gsmtp

Return-path: 
Received: from [188.174.56.186] (helo=fritz.box)
by ms-10.1blu.de with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
(Exim 4.90_1)
(envelope-from )
id 1nSMtR-00015i-BW
for xxx@gmail.com; Thu, 10 Mar 2022 18:48:05 +0100
Date: Thu, 10 Mar 2022 17:48:04 +
From: Matthias Apitz 
Reply-To: Matthias Apitz 
To: xxx yyy 
Subject: Fwd: Re: Jugendfischen 2022
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Message-ID: 
MIME-Version: 1.0
X-Con-Id: 51246
X-Con-U: 0-guru



- End forwarded message -

-- 
Matthias Apitz, ✉ g...@unixarea.de, http://www.unixarea.de/ +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub