Re: Reverse DNS and SMTP/POP3 mail
From: Paul Proefrock (paul_at_NO-heartlandgroup-JUNKMAIL.com)
Date: 08/24/04
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- In reply to: Javier Gomez [SBS MVP]: "Re: Reverse DNS and SMTP/POP3 mail"
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Date: Tue, 24 Aug 2004 13:58:37 -0500
Javier and all,
Thanks for your help. I was following the suggestions of the books (Windows
Small Business Server 2003 and WSBS Best Practices). They led me to believe
that DNS was the preferred connection.
Once I followed your suggestions, problems cleared up. Javier's explanation
help me to understand that SmartHost really is no different than what we had
been using with OutLook in our peer to peer setup
Thanks
Paul P
"Javier Gomez [SBS MVP]" <javier_gomez@REMOVE.THIS.engineer.com> wrote in
message news:Ofc2LbeiEHA.596@TK2MSFTNGP11.phx.gbl...
> To add to Merv's comments...
>
> Most of the time I use Smarthosts. In my home the server uses Comcast as a
> smarthost for almost 2yrs now and I have never had a problem. Remember
> that a smarthost is the same time John Doe has to do to send mail using
> stand-alone Outlook or Outlook Express.
>
> Bottomline-> You will have problems with Smarthost if and only if your ISP
> is crappy... which doesn't look like is your case.
>
> Having said that, if your really want to use DNS... you still have one
> option. Your problem appears that your ISP is willing to relay DNS
> resolution for your IP block, but you don't have anyone to host them for
> you. The solution is simply to get someone to do this for you. I know that
> many DNS hosting companies do this... for example ZoneEdit.com (never
> tried this particular service, but I have very good experiences with
> them). You will have to contact the DNS service of your choice and ask
> them what you need to do to setup PTR records and they will tell you to
> contact SBC and ask them to register them for the appropiate netblock.
>
> Be aware that this only works if you have more than a couple of IP
> addresses. My suggestion? Don't bother... use a smarthost :-)
>
> --
> Javier [SBS MVP]
>
> << SBS ROCKS!!! >>
>
> "Merv Porter [SBS-MVP]" <mwport@no_spam_hotmail.com> wrote in message
> news:%23OMO1kXiEHA.3536@TK2MSFTNGP12.phx.gbl...
>>I haven't had any problems with smarthosts but maybe there's something
>> specific to Roadrunner.
>>
>> SMTP SmartHosting (talks about Roadrunner a little)
>> http://www.christopherlewis.com/ATT_SMTP_Config.htm
>>
>> --
>> Merv Porter [SBS MVP]
>> ===================================
>>
>> "Paul Proefrock" <proefrock@NO_heartlandgroup_JUNKMAIL.com> wrote in
>> message
>> news:O595ECXiEHA.3608@TK2MSFTNGP09.phx.gbl...
>>> Merv,
>>> Thanks for the link. Looks like SmartHost is my only resolution. Lack of
>>> control is not a big issue, my host does a pretty good job.
>>>
>>> Have you ever run into any issues of relay or forwarding and mail not
>>> getting accepted using SmartHost? Some of our customers are on
>>> RoadRunner
>>> and they seem to dislike anything like this
>>>
>>> Paul P
>>>
>>> "Merv Porter [SBS-MVP]" <mwport@no_spam_hotmail.com> wrote in message
>>> news:O9q0fjWiEHA.2704@TK2MSFTNGP10.phx.gbl...
>>> > Paul:
>>> >
>>> > Take a look at...
>>> >
>>> > DNS vs. Smarthost
>>> > Javier Gomez - SBS MVP
>>> > http://www.sbslinks.com/DNS_Smarthost.htm
>>> >
>>> >
>>> > --
>>> > Merv Porter [SBS MVP]
>>> > ===================================
>>> > "Steve Bruce, mct" <swb_mct@msn.com> wrote in message
>>> > news:OqgbUvViEHA.3428@TK2MSFTNGP11.phx.gbl...
>>> >> We use our ISP's mail server as a smarthost to relay our mail. After
>>> > several
>>> >> months of usage in that configuration, we have not had any mail
>> blocked -
>>> >> even though our IP is on the RBL's for Dynamic Residential networks.
>>> >>
>>> >> With RoadRunner Cable, we are authenticated to relay through their
>>> >> SMTP
>>> >> server because of Modem registration, so we do not need to to use a
>> mail
>>> >> account to authenticate on their server. In some situations you
>>> >> would
>>> > have
>>> >> to use a mail account to authenticate.
>>> >>
>>> >> "Paul Proefrock" <paul@NO-heartlandgroup-JUNKMAIL.com> wrote in
>>> >> message
>>> >> news:uS3D5lViEHA.3548@TK2MSFTNGP09.phx.gbl...
>>> >> >I am into an endless loop and hoping someone will share some wisdom
>> with
>>> >> >me.
>>> >> >
>>> >> > We have installed SBS2003/SP1, used POP3 connector to handle email
>>> >> > to
>>> > our
>>> >> > exchange accounts, and enable DNS as the method. We can send and
>>> >> > receive
>>> >> > most mail without a problem. But some of our customers use reverse
>> DNS
>>> >> > lookup and that creates problems.
>>> >> >
>>> >> > Our static IP is assigned by our ISP, SBCGlobal, who only delegates
>> IP
>>> >> > blocks to whomever handles your DNS Server, they will not manage or
>>> > enable
>>> >> > reverse lookups. Our email and Website is hosted by
>>> >> > Readyhosting.com,
>>> > who
>>> >> > will not accept delegation of addresses for DNS.
>>> >> >
>>> >> > One way of correcting this would be switch to mail forwarding
>>> >> > rather
>>> > than
>>> >> > DNS, but I understand that this has some probable email problems in
>>> >> > that
>>> >> > other mailservers filter based on relays/forwarding. We might be
>> fixing
>>> >> > one problem and creating two others.
>>> >> >
>>> >> > Has anyone else experienced this and reached a workable solution.
>>> >> > It
>> is
>>> > in
>>> >> > our best interests to leave the mail hosted by the remote service
>>> >> > and
>>> > then
>>> >> > downloaded to Exchange.
>>> >> >
>>> >> > I talk to SBC, they point me to ReadyHosting. I call ReadyHosting,
>> they
>>> >> > point me to SBC. I don't know who wins in this contest but I sure
>> know
>>> > it
>>> >> > isn't me, the customer.
>>> >> >
>>> >> > Can anyone help point me towards a solution?
>>> >> >
>>> >> > Thanks
>>> >> >
>>> >> > Paul P
>>> >> >
>>> >>
>>> >>
>>> >
>>> >
>>>
>>>
>>
>>
>
>
- Next message: David Jones [MSFT]: "Re: MSDE Hotfix failed on Sharepoint instance"
- Previous message: happysbsuser: "https://domain:444 not accessible from non-domain PC's and RWW"
- In reply to: Javier Gomez [SBS MVP]: "Re: Reverse DNS and SMTP/POP3 mail"
- Messages sorted by: [ date ] [ thread ]
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