Spam Filter Solutions
Check Mail Server
- mail-tester.com – check if your mail server settings.
To debug email servers, you may need to quickly send a test email from command line, then check the logs. You can use mail command to send mail. But you need to fill multiple fields.
On Ubuntu/Debian, you need to install mailutils package
apt install -y mailutils
On CentOS
yum install mailx
Here is one line command to send email from terminal.
echo "This email body" | mail -s "test email from `hostname`" [email protected]
You can use -v option to verify/debug
echo "This email body" | mail -v -s "test email from `hostname`" [email protected]
Set from address for mail command
echo "Test mail" | mail -s "test mail" -a "From: [email protected]" [email protected]
Mail Server Solutions
- https://poste.io/ – complete mail server runs in docker. https://poste.io/doc/extending-mailserver
- http://iredmail.org
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