Testing Email With MailHog

MailHog is a simple package written in Go that acts as a mail server that captures all outbound email and puts it in a UI for you. Its GitHub repo is at https://github.com/mailhog/MailHog.

On Debian/Ubuntu systems, install the golang-go package using apt.

On EL-based and other systems, follow the instructions at https://go.dev/doc/install

Once you’ve got Go installed, simply run the following commands:

go install github.com/mailhog/MailHog@latest
go install github.com/mailhog/mhsendmail@latest

When finished, you’ll have a MailHog and mhsendmail executable in your ~/go/bin directory. I recommend copying the binaries over to /usr/sbin.

If you’re running PHP and want to use it, change your sendmail_path line in php.ini to read the following:


Start MailHog by running /usr/sbin/MailHog &

You can now access the web UI at http://localhost:8025/

If you want MailHog to run automatically as a service, create this file as /etc/systemd/system/mailhog.service

ExecStart=/usr/sbin/MailHog > /dev/null 2>&1 &

Then run systemctl enable mailhog and systemctl start mailhog