Email protection or what else ????
Steve
I discovered something strange.
I have sendmail running with 3 or 4 different domain name
I can send email as f...@aa.com or f...@bb.com etc....
The email server seems to work fine.....
except, that there are some few domain like "Hotmail" where
Any email sent to somebody having a 'hotmail' email address, will never
receive my message
I will receive no message saying that there is a problem etc. Nothing
this is pure lost
I checked my IP and I am not blacklisted
I moved the server recently, ( => having another Fix IP address )
And I noticed this problem again
- Any idea what could be the problem ?
- Any idea how to solve it ?
- Should I be necessary whitelisted ?
Thanks
Loki Harfagr
You already asked this and had answers, yet you come back and
don't give any more data to help the group to help you, that won't do.
Maybe you didn't read your previous thread conclusion?
here it goes again:
---------
> The problem is that some 'public' email provider like 'hotmail'... NEVER
> accept my emails, even if I am not blacklisted !
That's another and different problem than 'greylisting', problem here is that
you seemed to believe that every MX used the same central and well known 'blacklist'
as you think that you are "not blacklisted".
> Why? I suppose that
> they have specific rules,
Most certainly.
> which is a problem
>
> Do you think, that there another reason ?
Well, there could be so many "reasons" ;-)
When that's the case I suppose you get a DSN with a reject code?
That'd be a good info to start with :-)
Please mind that I'm not the 'hotmail' mailmaster and you may get a
more precise answer about what kind of specific rules they used
on your mails if you try and contact the hotmail services.
Now, I reckon that's not necessarily easy nor even feasible to get
a technical contact with this kind of 'institutions' then you
may have some good old crystal ball advice here if you can post a
good sample of the DSN you get :-)
---------
Steve
Hi,
Yes, and thank you for you reply.
I know, Originally, I had a problem with the greylist etc...
I thought to subscribed and I hope that will solve my problem
Apparently, this is not the entire problem.
Recently, I was asked to check my DNS ( as you mentioned ) more than
the greylist or Whitelist problem...
that the way I am investigating at the moment..
but that seems not to be an easy job
I hoped that maybe somebody in charge of ISP could give me some
indication. Apparently some ISP and email providers send their emails
easily to Hotmail !!
What they do in practice.. that's a good question :-)
Thanks again and sorry for having repeated my question :-)
Steve
Mark Hansen
If you really want to manage your own mail server, then you should
really look into a subscription at DNS Stuff (http://www.dnsstuff.com).
They have a lot of tools to help you keep your servers/services running
including spam database lookups, mail server test centers, etc.
The subscription isn't all that expensive, given all you get.
Of course, the cheaper route would be to configure your mail server
to "Smart Host" through your ISP's mail server. Then you don't have
to worry about any of it.
By the way, I don't know very much about hotmail, other than I've
had problems sending e-mail to recipients there as well, and have
heard nothing but bad things about it.
If you have friends there, you should tell them to move. They are
probably missing out on much they are not even aware of.
Best Regards,
Loki Harfagr
Well, mind that DNS is not DSN ...-) Not that having a well defined
DNS records set wouldn't help but before that you'll have to check
a few other details.
I was just trying and suggest, to the suggestible reader, that to
have an idea about what the problem (is|are) you should post
the exact reject message and code you get when you're trying to
send a message towards hotmail MXs.
A quick way could be you'd connect on a tty on your server and
then test like this (may hotmail forgive me as I actually issued
the commands to check out I was not sending you to hell with
commands that wouldn't lead you to get usable logs :D):
--------
$ /usr/lib/sendmail -bv to...@hotmail.com
to...@hotmail.com... deliverable: mailer esmtp, host hotmail.com., user to...@hotmail.com
$ dig hotmail.com. mx
...
;; ANSWER SECTION:
hotmail.com. 1683 IN MX 5 mx1.hotmail.com.
...
;; ADDITIONAL SECTION:
mx1.hotmail.com. 2647 IN A 65.54.***.***
--------
Then:
--------
$ telnet 65.54.***.*** 25
Trying 65.54.***.*** ...
Connected to wotever*.hotmail.com (65.54.***.***).
Escape character is '^]'.
220 wotever*.hotmail.com Sending unsolicited commercial or bulk...
ehlo .
250-wotever*.hotmail.com (*.*.*.74) Hello [***.***.***.***]
...
250 OK
mail from: to...@here.now
250 to...@here.now....Sender OK
RCPT TO: <real.a...@hotmail.com>
550 Requested action not taken: mailbox unavailable
RCPT TO: postm...@hotmail.com
250 postm...@hotmail.com
RSET
QUIT
--------
Or even better and quicker:
$ printf "test, please ignore"| /usr/lib/sendmail -Am -v -f 'noreply' '<existing...@hotmail.com>'
And then post here the full result.
> more than the greylist or Whitelist
> problem...
> that the way I am investigating at the moment..
>
> but that seems not to be an easy job
>
> I hoped that maybe somebody in charge of ISP could give me some
> indication. Apparently some ISP and email providers send their emails
> easily to Hotmail !!
> What they do in practice.. that's a good question :-)
You're already having these answers, actual problem is these answers include
questions to you and you never yet provided the answers to them, that's
the first blocking point :D)
>
> Thanks again and sorry for having repeated my question :-)
Problem is not in repeating the question, it's in not providing any
new fact especially the answers to the questions previously included
in the answers you already had...
Hum, did I mention I asked you some questions that needed some answer?-)