MX record of my linux server or the windows exchange server? On Sun, May 31, 2009 at 9:29 PM, Jeremiah Bess <[email protected]>wrote:
> What does your MX record point to? > > Jeremiah E. Bess > Network Ninja, Penguin Geek, Father of four > > > On Sun, May 31, 2009 at 09:56, Jibz <[email protected]> wrote: > >> hey!!! thanks!! that did a great help >> >> but i have a small issue pending... >> >> the mails if i send to *[email protected]* are being delivered, >> but the ones to *[email protected]* are not. >> >> why could it be so??? >> >> mails being send from my server are being received as * >> [email protected]*. >> >> how do i change it to *[email protected]*?? >> >> where do i define my domain??? >> >> >> On Sun, May 31, 2009 at 9:25 AM, Jeremiah Bess >> <[email protected]>wrote: >> >>> I'm not an exchange guy, so I can't help much in that area. Is there any >>> reason why you have to use the exchange server as a relay? >>> >>> Jeremiah E. Bess >>> Network Ninja, Penguin Geek, Father of four >>> >>> >>> On Sat, May 30, 2009 at 21:28, Jibz <[email protected]> wrote: >>> >>>> Is there any way i can tell my mail server to not to deny that IP? Can >>>> i change the configuration not to check for relay? >>>> >>>> On Sun, May 31, 2009 at 2:48 AM, Jeremiah Bess <[email protected] >>>> > wrote: >>>> >>>>> This is because your internet address does not reverse map to the DNS >>>>> domain you are sending from. You need to set your external DNS to use your >>>>> NATed address, or use a dynamic DNS hosting service like dnydns or >>>>> no-ip.com. >>>>> >>>>> Basically, when you go to iptools.com and do a MX lookup for >>>>> yourdomain.com, it should show the internet address of your ISP modem. >>>>> Additionally, your IP should reverse map to yourdomain.com. >>>>> >>>>> Jeremiah E. Bess >>>>> Network Ninja, Penguin Geek, Father of four >>>>> >>>>> >>>>> >>>>> On Sat, May 30, 2009 at 12:10, Jibz <[email protected]> wrote: >>>>> >>>>>> I have setup a mail server on CentOS 5 >>>>>> >>>>>> >>>>>> sendmail-8.13 >>>>>> >>>>>> I'm able to sent and receive mails from yahoo and gmail. >>>>>> I've another microsoft exchange server on the same network. Mails sent >>>>>> from that server to my mail server gets bounced. >>>>>> >>>>>> I got this error in /var/log/mail >>>>>> >>>>>> *May 30 22:11:24 myhostname sendmail[31981]: n4UGfO5L031981: >>>>>> ruleset=check_rcpt, arg1=<[email protected]>, relay= >>>>>> mx1.exchangeserver.com[public IP of exchange server] (may be forged), >>>>>> reject=550 5.7.1 <[email protected]>... Relaying denied. IP name >>>>>> possibly forged [public IP of exchange server] >>>>>> >>>>>> May 30 22:11:24 myhostname sendmail[31981]: n4UGfO5L031981: >>>>>> from=<usern...@exchangeserver>, size=0, class=0, nrcpts=0, >>>>>> proto=SMTP, daemon=MTA, relay=mx1.exchangeserver.com [public IP of >>>>>> exchange server] (may be forged)* >>>>>> >>>>>> As the exchange server is in my network if you do a lookup for the >>>>>> domain name of that server you will get the local IP only. >>>>>> >>>>>> So i changed the entry of my /etc/hosts file >>>>>> >>>>>> and added >>>>>> >>>>>> <PUBLIC IP> <exchangeserver.com> >>>>>> >>>>>> Now still the mails bounces but a different error >>>>>> >>>>>> *May 30 22:42:10 myhostname sendmail[32645]: n4UHCASl032645: >>>>>> ruleset=check_rcpt, arg1=<[email protected]>, >>>>>> relay=mail.exchangeserverom [public IP of exchange server], reject=550 >>>>>> 5.7.1 >>>>>> <[email protected]>... Relaying denied >>>>>> >>>>>> >>>>>> May 30 22:42:10 myhostname sendmail[32645]: n4UHCASl032645: >>>>>> from=<usern...@exchangeserver>, size=0, class=0, nrcpts=0, >>>>>> proto=SMTP, daemon=MTA, relay=mail.exchangeserver[public IP of exchange >>>>>> server]* >>>>>> >>>>>> Please help me out!!!! >>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>>> >>>> >>>> >>>> -- >>>> "The will of God will never take you where the Grace of God will not >>>> protect you." >>>> >>>> >>>> >>>> >>> >>> >>> >> >> >> -- >> "The will of God will never take you where the Grace of God will not >> protect you." >> >> >> > > > > -- "The will of God will never take you where the Grace of God will not protect you." --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Linux Users Group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] For more options, visit our group at http://groups.google.com/group/linuxusersgroup -~----------~----~----~----~------~----~------~--~---
