virtual domains and backscatter

I'm currently hosting some virtual domain email with cyrus and
it's working well. But I have to move to a new server and the
cyrus solution isn't coming together. I've tried Dovecot but so
far I haven't found a way to avoid backscatter. Is there a good
way to use sendmail with Dovecot and have bad addresses be
rejected at rcpt time?

On Sep 4, 9:06 pm, Rick <el...@spinics.net> wrote:
> I'm currently hosting some virtual domain email with cyrus and
> it's working well. But I have to move to a new server and the
> cyrus solution isn't coming together. I've tried Dovecot but so
> far I haven't found a way to avoid backscatter. Is there a good
> way to use sendmail with Dovecot and have bad addresses be
> rejected at rcpt time?

I don't use either Cyrus or Dovecot, but if an address isn't valid
they'll get a "Unknown
User" from sendmail. If you are doing the *@example.com to receive
email.... I learned
a long time ago that that's a bad thing.

Tuc

Rick <ellis@spinics.net> wrote:
> I'm currently hosting some virtual domain email with cyrus and
> it's working well. But I have to move to a new server and the
> cyrus solution isn't coming together.

It is possible to make sendmail ask cyrus about valid mailboxes using
socket map. See RTCyrus3 at http://open-sendmail.sourceforge.net/

> I've tried Dovecot but so far I haven't found a way to avoid
> backscatter. Is there a good way to use sendmail with Dovecot and have
> bad addresses be rejected at rcpt time?

Take a look at the thread below:
http://groups.google.com/group/comp....2c03c524acf53c

From: Andrzej Adam Filip <anfi@onet.eu>
Newsgroups: comp.mail.sendmail
Subject: Re: Sendmail and passwd-like file. [FEATURE(`anfi/vdovecot') ?]
Date: Wed, 06 Feb 2008 21:09:26 +0100
Message-ID: <87lk5xalu1+shawn@fsf.hobby-site.com>


--
[pl>en Andrew] Andrzej Adam Filip : anfi@onet.eu : anfi@xl.wp.pl
The penalty for laughing in a courtroom is six months in jail; if it
were not for this penalty, the jury would never hear the evidence.
-- H. L. Mencken

In article <60a3b202-8ed1-40b8-9b21-d8829e868ea4@i76g2000hsf.googlegroups.com>,
Tuc <tuctboh@gmail.com> wrote:

>I don't use either Cyrus or Dovecot, but if an address isn't
>valid they'll get a "Unknown User" from sendmail.

They won't get one at rcpt time when the mailboxes aren't
login accounts.

>If you are doing the *@example.com to receive email.... I
>learned a long time ago that that's a bad thing.

I'm not doing that.

In article <621bbtqi78@james.huge.strangled.net>,
Andrzej Adam Filip <anfi@onet.eu> wrote:

>It is possible to make sendmail ask cyrus about valid mailboxes using
>socket map. See RTCyrus3 at http://open-sendmail.sourceforge.net/

That is what I'm doing on the old server. But cyrus isn't cooperating
with me on the new system.

>Take a look at the thread below:
>http://groups.google.com/group/comp....2c03c524acf53c

Thanks, I'll look at that in more detail when I'm awake

On Fri, 5 Sep 2008, ellis@no.spam wrote:

> In article <621bbtqi78@james.huge.strangled.net>,
> Andrzej Adam Filip <anfi@onet.eu> wrote:
>
>> It is possible to make sendmail ask cyrus about valid mailboxes using
>> socket map. See RTCyrus3 at http://open-sendmail.sourceforge.net/
>
> That is what I'm doing on the old server. But cyrus isn't cooperating
> with me on the new system.

cyrus is a pure bitch, if you as much as sneeze with a slight variant in
bdb, if cries like a sook, we stuck with sendmail/milters and qmail, but
as of this week the network went live with postfix (using dovecot's LDA),
entirely painless and less work for the servers, sendmail lost out big time
when they chose to not natively support mysql, i wasnt going to mess with
ldap and thats a general opinion amongst many network admins in some
rather large isp's and hosting companies and qmail back-end was becoming
a bit tedious to maintain, now we have little to do because it all just
works postfix is a prick to configure right with a myriad of options
(and pf people have the nerve to whinge about sendmails cf)I'll still run
sendmail on dedicated boxes, but on our core corporate network, the
move to postfix should have happened years ago I tried a few times to
convince sendmail folk to intro it but all they could say was well then
we'd have to support postgresql and every other database, poor, in fact
fucking piss poor, and their loss is yet another postfix gain.


--
Cheers
Res

"The hopes we had, were much to high, way out of reach, but we have to
try, no need to hide, no need to run, cause all the answers come one by
one. The game will never be over, because we're keeping the dream alive"
-Freiheit

On Sep 5, 4:14 am, el...@no.spam () wrote:
> In article <60a3b202-8ed1-40b8-9b21-d8829e868...@i76g2000hsf.googlegroups.com>,
>
> Tuc <tuct...@gmail.com> wrote:
> >I don't use either Cyrus or Dovecot, but if an address isn't
> >valid they'll get a "Unknown User" from sendmail.
>
> They won't get one at rcpt time when the mailboxes aren't
> login accounts.
>
Then your using something other than virtusertable, sorry, my
bad. Thats
how we are handling all our virtualizing.

Tuc

Res <res@ausics.net> wrote:

> On Fri, 5 Sep 2008, ellis@no.spam wrote:
>
>> In article <621bbtqi78@james.huge.strangled.net>,
>> Andrzej Adam Filip <anfi@onet.eu> wrote:
>>
>>> It is possible to make sendmail ask cyrus about valid mailboxes using
>>> socket map. See RTCyrus3 at http://open-sendmail.sourceforge.net/
>>
>> That is what I'm doing on the old server. But cyrus isn't cooperating
>> with me on the new system.
>
> cyrus is a pure bitch, if you as much as sneeze with a slight variant
> in bdb, if cries like a sook, we stuck with sendmail/milters and
> qmail, but as of this week the network went live with postfix (using
> dovecot's LDA), entirely painless and less work for the servers,
> sendmail lost out big time
> when they chose to not natively support mysql, i wasnt going to mess with
> ldap and thats a general opinion amongst many network admins in some
> rather large isp's and hosting companies and qmail back-end was
> becoming
> a bit tedious to maintain, now we have little to do because it all
> just works postfix is a prick to configure right with a myriad of
> options (and pf people have the nerve to whinge about sendmails
> cf)I'll still run sendmail on dedicated boxes, but on our core
> corporate network, the move to postfix should have happened years ago
> I tried a few times to convince sendmail folk to intro it but all
> they could say was well then we'd have to support postgresql and every
> other database, poor, in fact fucking piss poor, and their loss is yet
> another postfix gain.

Are you sendmail.COM's *paying* customer?

http://www.businesswire.com/portal/s...46&newsLang=en
<quote>
August 19, 2008 08:01 AM Eastern Daylight Time
Sendmail Announces 76% Increase in Year-over-Year Sales
Enterprises Gaining High ROI From Cutting Costs of Messaging Infrastructure
EMERYVILLE, Calif.--(BUSINESS WIRE)--Sendmail, Inc., the leading
provider of reliable and secure email and messaging infrastructures,
today announced that sales results for the first six months of the
2008 fiscal year have increased by 76% over the same period in
2007. This revenue growth is largely attributed to increased worldwide
demand for the company’s Sentrion® family of Message Processor
appliances and plug-in security applications. These results include
the first shipments of the company’s new Sentrion MPV virtual
appliance, based on VMware, which was announced at the RSA conference
in April.
</quote>

--
[pl>en Andrew] Andrzej Adam Filip : anfi@onet.eu : anfi@xl.wp.pl
Hollywood is where if you don't have happiness you send out for it.
-- Rex Reed

In article <621bbtqi78@james.huge.strangled.net>,
Andrzej Adam Filip <anfi@onet.eu> wrote:

>Take a look at the thread below:
>http://groups.google.com/group/comp....2c03c524acf53c

So far it doesn't seem to work. Everything at the dovecot
domain shows deliverable. Am I missing something?

ellis@no.spam () wrote:

> In article <621bbtqi78@james.huge.strangled.net>,
> Andrzej Adam Filip <anfi@onet.eu> wrote:
>
>>Take a look at the thread below:
>>http://groups.google.com/group/comp....2c03c524acf53c
>
> So far it doesn't seem to work. Everything at the dovecot
> domain shows deliverable. Am I missing something?

Have you conducted "step by step" installation tests provided in
http://groups.google.com/group/comp....55531627df555d

From: Andrzej Adam Filip <anfi@onet.eu>
Newsgroups: comp.mail.sendmail
Subject: Re: Sendmail and passwd-like file. [FEATURE(`anfi/vdovecot') ?]
Date: Wed, 06 Feb 2008 21:09:26 +0100
Message-ID: <87lk5xalu1+shawn@fsf.hobby-site.com>

--
[pl>en Andrew] Andrzej Adam Filip : anfi@onet.eu : anfi@xl.wp.pl
I'm enthralled by combine harvesters.
In fact, I yearn to have one -- as a pet.
-- "The Day of the Jackal"