The MX record that points to mydomain.com Jeremiah E. Bess Network Ninja, Penguin Geek, Father of four
On Sun, May 31, 2009 at 10:03, Jibz <[email protected]> wrote: > 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 -~----------~----~----~----~------~----~------~--~---
