How to upgrade to sendmail 8.12.10 on Red Hat 7.3

Download and untar latest sendmail

1. Command = cd /../opt/Src/
2. Command = tar zxvfp sendmail.8.12.10.tar.gz

Stop Sendmail

3. Command = /etc/rc.d/init.d/sendmail stop

Back up sendmail

4. Command = cp /usr/sbin/sendmail /usr/sbin/sendmail.original
5. Command = cp /etc/mail/sendmail.mc /etc/mail/sendmail.mc.original
6.Command = cp /etc/mail/sendmail.cf /etc/mail/sendmail.cf.original
7. Command = cp /etc/mail/access /etc/mail/access.original
8. Command = cp /etc/aliases /etc/aliases.original

Building Sendmail

9. Command = cd /opt/Src/sendmail-8.12.10
10.Command = ./Build
11.Command = ./Build install

Make Necessary Edits to .mc file

12. Command = cd cf/cf/
13. Command = vi /opt/Src/sendmail-8.12.10/cf/cf/sendmail.mc

Copying/Developing Sendmail Configs:

*While in the ../cf/cf director
14. Command = ./Build sendmail.cf
15. Command = cp /opt/Src/sendmail-8.12.10/cf/cf/sendmail.cf /etc/mail/sendmail.cf
16. Command = cp /opt/Src/sendmail-8.12.10/cf/cf/sendmail.mc /etc/mail/sendmail.mc
17. Command = vi /etc/mail/access a change a small value
18. Command = cd /etc/mail
19. Command = newaliases
20. Command = make


Start Sendmail

21. Command = /etc/rc.d/init.d/sendmail start

Tests and clean up

22. Command = sendmail -d0.1 -bp
*This reports Sendmail Version
23. Check Open Rely: http://members.iinet.net.au/~remmie/relay/
24. Check mail can be sent out and in.
25. Review mail log for errors.
36. http://www.zmailer.org/mxverify.html