Running our sendmail mail relay in a chroot jail, ‘make’ does not update sendmail config files with changes. While I’m certain there’s a way to sort that, it’s a lot easier to go back to the old-school way of updating sendmail.cf and sendmail’s hash files.

Modifying Sendmail Configuration (sendmail.mc) on Servers with CHROOT Jailed Sendmail

1. SSH to server using your ID
2. Change to the sendmail service account (e.g. sudo /bin/su – sendmail)
3. Change directory to the jailed sendmail /etc/mail locatio (e.g. cd /smt00p20/sendmail/etc/mail)
4. vi sendmail.mc
5. Make requisite changes and save file
6. m4 sendmail.mc > sendmail.cf
7. Under your ID, restart sendmail using “sudo systemctl stop sendmail stop;sudo systemctl start sendmail”
8. Validate changes

Modifying Sendmail Data Files on Servers with CHROOT Jailed Sendmail

1. SSH to server using your ID
2. Change to the sendmail service account (e.g. sudo /bin/su – sendmail)
3. Change directory to the jailed sendmail /etc/mail locatio (e.g. cd /smt00p20/sendmail/etc/mail)
4. vi filetoedit
5. Make requisite changes and save file
6. makemap hash ./filetoedit.db < ./filetoedit
7. Under your ID, restart sendmail using  “sudo systemctl stop sendmail stop;sudo systemctl start sendmail”
8. Validate changes

Where filetoedit is the name of the data file. For example, run “makemap hash ./access.db < ./access” to update the changes to the access file into access.db