add email service with nodemailer

[eolculnamo2]

• I have read Chapter's contributing guidelines.
• My pull request has a descriptive title (not a vague title like Update README.md).
• My pull request targets the master branch of Chapter.

Creates Email Service using nodemailer that will be used later for our email tickets.

Dependencies Added:

1. nodemailer
2. chai
3. sinon
4. sinon-chai.

[vaibhavsingh97]

LGTM, just a minor changes

Note to self: Have to raise another issue, as according to @QuincyLarson comment, we have to support popular options like Amazon SES, SendGrid, and Mandrill.

[ScottBrenner]

How about using a ".env" file in Docker Compose?

[eolculnamo2]

I honestly don't know much at all about Docker -- Do you mean that we should use environment variables in Docker Compose for default variables that can be overwritten by an .env file?

[allella]

@vaibhavsingh97 @eolculnamo2 would we need to enable all the transports, by default, to support the common options?

Looks like SMTP is the default and then SES and sendmail (local relay) need to be enabled.

So, would we be installing everything even if people only will use one transport?

[jacobbogers]

Hi, I can look into this

[jacobbogers]

Hi @ALL, I need to dive into node-mailer ( I am only familiar with mailgun-js ), for me to make any sensible decision about design.. I will take this opportunity to learn node-mailer very well,

[vaibhavsingh97]

would we need to enable all the transports, by default, to support the common options?

Nope, by default only SMTP will be enabled, we will just provide options to enable all other providers.

Would we be installing everything even if people only will use one transport?

Nope, We will give options to users, if they want to use other services.

[allella]

Nope, by default only SMTP will be enabled, we will just provide options to enable all other providers

How would installing new mailer packages work for the app? Would the administrator need to run a command on the server, or is there a way to install new packages directly from the application admin UI and/or configuration files?

[jacobbogers]

@allella nodemailer uses plugins for non SMTP transports (has some build in), to avoid manually installing them, they need to already exist, its best to view these diff plugins as a "preset" (needs its own config page to fill in params) to be selected, I am looking into that as well to put in MVP, it seems to be very trivial to add in the various plugins for node-mailer, still investigating...

[vaibhavsingh97]

@eolculnamo2 Can you please resolve conflicts so that we can merge 😄

[eolculnamo2]

Will do :)

[vaibhavsingh97]

Also, Can you please resolve @ScottBrenner comment, also as you had added mocha and chai for test frameworks, so can you please add the same in the readme here and here.

[vaibhavsingh97]

LGTM

[allella]

We had more current conversation in today's meeting on using nodemailer and SMTP with free / cheap tiers of 3rd party transactional mailing services.