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- Join Date
- Jul 2009
Sendmai, SMART_HOST, and MX Records. Oh my!
The issue is we have our main mail cluster, named mxhost1. It is the MX host in dns for all internal systems.
We have a special one for some of the system called mxhost3. On some hosts we specify mxhost3 as the SMART_HOST.
On the special servers I run "sendmail -bv someemailaddress". It returns that it will relay through mxhost3.
Here is where the problem comes up. Rather than go off the SMART_HOST setting exclusively, sendmail sees that mxhost1 is the MX host for mxhost3.
Is this expected behavior? This cost me several hours today debugging this and it seems like a silly thing to essentially over ride the SMART_HOST setting.
I'm not sure whether i understood your problem correctly,
If you want to use mxhost3 as SMART_HOST try the following
1) Make sure local sendmail port 25 is not blocked & Add ip address of remote machine in /etc/hosts file
18.104.22.168 mxhost3.xxx.com xxxcomdev
2) In sendmail.mc provide your sendmail server name and make sure DAEMON_OPTIONS is commented,
dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
3)creat new configuration file using following command,
#m4 sendmail.mc > sendmail.cf
4)Restart the sendmail program.
#service sendmail restart