How to force email client to use SMTP authentication?

[oscar296]

Now i can send email via my direct admin server to send out email without smtp authentication.
How can i force it to use SMTP authentication only before i open the port 25 to public?

Thanks
Oscar

 

[SeLLeRoNe]

What version of exim and exim.conf and exim.pl are you using?
Are you using CB2? Is it managing your exim.conf?

Regards

 

[oscar296]

From nano exim.conf, it is exim 4.24 and exim.pl dated 20-Apr-2007 17:09

What is CB2? i am new to direct admin.
I can edit the file of exim.conf
My OS is Centos 7

 

[SeLLeRoNe]

CustomBuild 2 FAQ: http://forum.directadmin.com/showthread.php?t=44743

I suggest you to update to CB2, unless you have particular reason to stay with the old version, and set it to mantain exim, exim_conf, dovecot, dovecot_conf

Once you update your softwares and configurations you should have authentication required for SMTP connections.

Best regards

 

[Arieh]

There's also da-popb4smtp which whitelists clients when they use authentication for imap/pop so they can use smtp un authenticated. To disable see https://help.directadmin.com/item.php?id=467

 

[oscar296]

Thank you for your suggestion, i did the below code.
cd /usr/local/directadmin
wget -O custombuild.tar.gz http://files.directadmin.com/services/custombuild/2.0/custombuild.tar.gz
tar xvzf custombuild.tar.gz
cd custombuild
./build

./build all d

What is next to mantain exim, exim_conf, dovecot, dovecot_conf?

 

[oscar296]

CustomBuild 2 FAQ: http://forum.directadmin.com/showthread.php?t=44743

I suggest you to update to CB2, unless you have particular reason to stay with the old version, and set it to mantain exim, exim_conf, dovecot, dovecot_conf

Once you update your softwares and configurations you should have authentication required for SMTP connections.

Best regards

I have installed the CB2 how can i verify it? how to use CB2 to maintain exim, exim_conf, dovecot, dovecot_conf?

 

[zEitEr]

Hello,

Check the link to get a full documentation on its usage:
CustomBuild 2 FAQ: http://forum.directadmin.com/showthread.php?t=44743

 

[SeLLeRoNe]

Edit the options.conf in the custombuild folder and set:

eximconf=yes
eximconf_release=4.4
blockcracking=yes
easy_spam_fighter=yes
spamassassin=yes
sa_update=daily
dovecot=yes
dovecot_conf=yes
pigeonhole=yes


Then build exim/exim_conf/dovecot/dovecot_conf

Regards