tried that it is for Domain with their propre ip, not for VD attached to the main host also it does not change the ehlo the questions remains
----- Original Message ----- From: "David Gregg" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, October 15, 2003 3:38 AM Subject: Re: [IMail Forum] PTR record for a virtual IP > Serge, > > Since version 5.03, you can force IMail to send al outgoing mail from the > primary IP/Domain by: > > Adding the value (REG_DWORD) "BindToIP" in > HKEY_LOCAL_MACHINE\SOFTWARE\Ipswitch\IMail\Global and > assign a value of 0 (zero) > > Restart services, etc... > > Not sure about the HELO portion, but I assume since imail makes conenction > out on the primary, the HELO would follow along. > > Regards, > > David Gregg > dgSoft Internet Services > Web hosting, Email outsourcing, Dedicated and shared infrastructure > solutions. > (949) 584-1514 > > ----- Original Message ----- > From: "Serge" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Tuesday, October 14, 2003 8:13 PM > Subject: Re: [IMail Forum] PTR record for a virtual IP > > > > Hi Len et al > > This may be of interest to all Virtual Domains users > > > > Did some extensive testing on virtual domains (shared IP with the official > > imail host) > > > > I came uo with 2 conclusions: > > > > 1- If the VD user do not authenticate, the smtp rdeliver ehlo will be the > > official imail hostname. > > but is the user does authenticate, the smtp ehlo will be mail.VD.com > > therfore, when using virtual domains, it is going to be impossible to make > > the PTR and Ehlo same (if you use authent.) > > that is a problem for users like me with 50+ VD on the same IP > > > > All comments are wellcomed > > > > 2- More disturbing, when using VD authenticated users, the IP used to send > > the mail is the primary NIC IP (which in my case different from the IP of > > the iimail offficial host) I use .1 for the Primary NIC ip, .6 as a > > secondary IP on the same NIC, and have binded Imail official host to .6 > > works fine for official host, but all VD attached to the official host are > > using .1 instead of .6 to send mail (for VD authenticated users) > > isn't this a bug ? > > When i configure a VD to use the IP of the official host, shouldn't it > > always do that ? > > > > Comments ? > > > > > > > > ----- Original Message ----- > > From: "Len Conrad" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Saturday, October 11, 2003 8:58 PM > > Subject: Re: [IMail Forum] PTR record for a virtual IP > > > > > > > > > > >Let me rephrase my question > > > >when a user on a virtual domain domain2.com send an email via the > server > > > >host domain1.com, will smtp identify itself as Domain1.com or > > Domain2.com? > > > > > > I looked up this "Imail helo's as" in the u/g and kb, and couldn't find > > for > > > sure (esp since it's an important point), but I think I remember an > answer > > > in this list from Ipswitch person that Imail helo's with the > > > default/canonical hostname for a given IP. > > > > > > >does the answer depends on whether the user authenticated or not ? > > > > > > I would say no. there's no correspondance. Imail SMTPD > > > greets+authenticates, but it's IMail SMTP that sends. Imail doesn't > > change > > > it's HELO hostame to match every outbound @sender.domain it sends. eg, > > > what about users who send through IMail using a domain that is not even > an > > > Imail domain, real or virtual? > > > > > > >If the answer is Domain1.com, then the "from" [EMAIL PROTECTED], will be > > > >different from the ehlo/smtp/PTR > > > >Is that tested by some servers ? > > > > > > Sure. > > > > > > eg, to prevent common forgeries of the helo hostname using the domains > of > > > BigISP (yahoo, hotmail, etc), IMGate can do this logic: > > > > > > if helo is /BigISP/, then PTR must be /BigISP/. > > > > > > if sender.domain is /big ISP/, then PTR must be /BigISP/ > > > > > > if PTR is /BigISP/, then sender.domain must be /BigISP/ > > > > > > etc, etc. > > > > > > >can it be a problem ? > > > > > > not in general. > > > > > > As I said, the ptr/helo/smtp-greet hostname is identified with the > > physical > > > machine and its IP address, independent of the (virtual) envelope > > > sender/recipient domains the machine emits/receives. > > > > > > There is no required correspondence between a domain's MX hostname and > PTR > > > of IP it resolves to. > > > > > > somedomain.com MX 10 mx.whatever.com. > > > > > > but somedomain.com is not involved in matchup of: > > > > > > mx.whatever.com. A A.B.C.D > > > > > > D.C.B.A.in-addr.arpa PTR mx.whatever.com. > > > > > > And then the MTA at IP A.B.C.D : > > > > > > SMTP-greets as mx.whatever.com > > > > > > HELOs as mx.whatever.com > > > > > > > > > Len > > > > > > _____________________________________________________________________ > > > http://MenAndMice.com/DNS-training: Wash DC; Dallas; Atlanta > > > IMGate.MEIway.com: anti-spam gateway, effective on 1000's of sites, free > > > > > > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > > > List Archive: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > > > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > > > > > > > > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
