May be this is foolish to ask but I want to know abt reverse lookup and how its can be test. Thanks Zafar -----Original Message----- From: Mike Dufoe [mailto:dufoem@xxxxxxxxxxx] Sent: Tuesday, April 08, 2003 5:45 PM To: [ExchangeList] Subject: [exchangelist] RE: Help please http://www.MSExchange.org/ Sounds like you have a reverse DNS issue at your end. I would check with your ISP to make sure. Mike -----Original Message----- From: Zafar Pravaiz - CIG [mailto:Zafar.Pravaiz@xxxxxxxxx] Sent: Tuesday, April 08, 2003 9:22 AM To: [ExchangeList] Subject: [exchangelist] RE: Help please http://www.MSExchange.org/ I can receive mail from sun but I can't send. And my Mail system is working ok since last 4 yrs. And on my DNS, MX record is setup for my Mail server not for Sun. Thanks Zafar -----Original Message----- From: Denise Dorrance [mailto:denisedorrance@xxxxxxxxxxx <mailto:denisedorrance@xxxxxxxxxxx> ] Sent: Tuesday, April 08, 2003 5:13 PM To: [ExchangeList] Subject: [exchangelist] RE: Help please http://www.MSExchange.org/ <http://www.MSExchange.org/> Can you receive mail from 'privacy@xxxxxxx'? Is the mx record setup correctly on your dns server. >From: Zafar Pravaiz - CIG <Zafar.Pravaiz@xxxxxxxxx> >Reply-To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx> >To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx> >Subject: [exchangelist] RE: Help please >Date: Tue, 8 Apr 2003 12:43:16 +0400 > >http://www.MSExchange.org/ <http://www.MSExchange.org/> > >Hi > > > >I get a NDR as follow > > > >The following recipient(s) could not be reached: > > > > 'privacy@xxxxxxx' on 4/7/2003 9:59 AM > > Unable to deliver the message due to a communications failure > > The MTS-ID of the original message is: c=US;a= >;p=xxxx;l=xxxxxx-030407055804Z-10774 > > MSEXCH:IMS:xxxxxx:xxxxx:xxxxx 3550 (000B09AA) 550 no MX- or >A-record > > > >Thanks > >Zafar > > > > > Disclaimer: Information contained in this e-mail and in any of its attached files, including replies and forwarded copies, is confidential and intended solely for the addressee(s) and may be legally privileged or prohibited from disclosure and unauthorized use. 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