0

So i've seen a couple of questions about setting up notifications for PHP-based websites, so i'd like to ask you for the best approach. For that,

I have:

  • a WordPress website with custom PHP packages hosted locally, no containers,
  • working sendmail setup being used by PHP working as a smart host, we use a Mailgun account and send mails generated by WordPress to their SMTP,

I want:

  • the same WordPress website I host locally but in Docker,
  • emails are being sent in the same way as it was locally set,
  • I want to avoid hosting anything outside Docker (except nginx).

Options I've seen are:

  • hosting postfix locally (as it can listen on public port and docker0) and using SMTP client on the website container sending mails to a local postfix instance, then postfix instance sending emails to Mailgun SMTP,
  • the same option as above but with hosting postfix on Docker,
  • using just a small client on the website container and that's all what's needed (although no idea if that would work since I have no good experience in setting up mail servers).

Extra questions which would let me understand the problem better:

  • since I want to avoid hosting anything locally, the best approach would be if I hosted Postfix on Docker container, then some small SMTP client like msmtp on the website container so I can replace sendmail being used as a default way to send mails. Do I have to expose port 25 outside the Docker network or having the port exposed within the network is enough?
  • can I just use a small SMTP client like msmtp on the website container and that would be enough? if not, why?
Radosław Serba
  • 173
  • 1
  • 11

0 Answers0