PowerMTA allow an IP to sent email
To allow a web server to send email through PowerMTA with out autentication, you need to edit PowerMTA configuration file
swaks – command line SMTP testing tool
swaks is a command line SMTP testing tool available at http://www.jetmore.org/john/code/swaks/ On Debian/Ubuntu, you can install it with if you
Create DKIM in PowerMTA
To generate DKIM, run the command This will create 2 files. private.pem and public.pem Create a file and copy content
Change SMTP port in PowerMTA
To change SMTP port in PowerMTA, edit file Find line starting with This line specify port used by PowerMTA server.
Create SMTP user in PowerMTA
Once you have PowerMTA installed, you need to create SMTP user. To create an SMTP user, edit file Find Add
How do I view what exim is doing?
Exim comes with a utility called “exiwhat” which will display what each instance of exim is currently involved with. The
How to stop SPAM with Postfix RBL
To stop spam using RBL in postfix, edit main.cf Add Restart postfix See postfix
Postfix enable Maildir
To enable postfix, run You can do it by editing /etc/postfix/main.cf Add if home_mailbox entry already in main.cf file, then
fatal: open /etc/postfix/main.cf: Permission denied
On a CentOS server, when sending mail from PHP scripts, mail failed to work. On checking postfix log file (/var/log/maillog),
Postfix email forward
On an Ubuntu Server, i done following to setup email forwarding. Install postfix Edit /etc/postfix/main.cf, add following Add Create Virtual
iredmail
iRedMail allow you to run your own mail server easily. It use postfix mail server for mail delivery. https://www.iredmail.org/ iredmail
iredmail increase mail attachment size
Default mail attachment size in iredmail is 10 MB. To increase mail attachment size, login to server as user root,