MailCatcher VS Mail

hey HN, I recently published an article going deep into email previewing (in Ruby on Rails, but I think it's relevant beyond Rails).

MailCatcher (https://github.com/sj26/mailcatcher) and MailHog (https://github.com/mailhog/MailHog) are super handy and easy to run locally. Both spin up an SMTP server which you can direct mail to, and give you a nice web interface to browse mail and preview it.

Happy to answer any question! thanks, harrison

A couple others

* Mail Catcher https://mailcatcher.me/

Useful. Seems very similar to MailCatcher, but not depending on Ruby is always a plus.

I just upgraded to Alpine Linux 3.16.1 This is an important upgrade as it fixes 2 major issues: - busybox CVE-2022-30065 - openssl CVE-2022-2097 Related information: Mailcatcher as a docker image using Alpine Linux 3.16.1: https://hub.docker.com/r/stpaquet/alpinemailcatcher Github repo: https://github.com/spaquet/docker-alpine-mailcatcher Mailcatcher: https://mailcatcher.me

Mailcatcher: https://mailcatcher.me

Mailhog sounds a lot like mailcatcher

I would install https://mailcatcher.me and see if that local smtp works.

Useful links: Mailcatcher homepage: mailcatcher.me Dockerfile and Docker Compose: https://github.com/spaquet/docker-alpine-mailcatcher Dockerhub: https://hub.docker.com/r/stpaquet/alpinemailcatcher

I can run MailCatcher or MailHog or Postfix or Sendmail or any number of other solutions, but there's not any other linux sysadmins here so something with an easy gui setup would be convenient so others can poke around if needed.

"2.8.0.1. Fixes file permissions in 2.8.0 release. No code changes."

https://github.com/mikel/mail/tags

I would look to existing libraries to see how they solve the problem. Stack Overflow is OK, but I find that the "one liner" solutions you find there often oversimplify. There is a popular, and currently maintained, Rubygem library called Mail that includes a class for quoted printable, which in turn provides a class method for decoding quoted printable strings.

This is easiest if you have a MacBook since Ruby is installed by default. You can make a small script using this Ruby gem (plugin) - https://github.com/mikel/mail

There are basically three levels of address checking:

1) You need to validate an email field for login or a website - checking for an @ mark with some text before and at least one . after the @ will do for this.

2) You need to do some sort of address validation, library regexps like this will do for 99.9...% of these.

3) You are building an email handling system which needs to actually support the RFCs, in which case regexp will not handle what you need, and you need to use a proper parser, like https://github.com/mikel/mail/tree/master/lib/mail/parsers

Ref: I am the original author of the Ruby mail gem.

Email addresses have a lot of gotchas that can make rolling your own logic hard. I haven't used Ruby in a while but there are gems like Mail that can help validating email addresses easier.