Allow SMTP Port in Email Settings to be set to an environment variable

[rungta]

Description

With 3.1 we can now use environment variables for SMTP email settings. But this feature was not extended to the SMTP Port field. Different SMTP configurations on dev and production cannot truly live in the .env file if both SMTP servers do not share the same port (e.g. Mailgun on production uses 587, but Mailtrap on dev uses 465).

Steps to reproduce

1. Go to Settings > Email
2. Set Transport Type to SMTP
3. Set the value of the Port field to a variable from your .env file, like $SMTP_PORT

Additional info

• Craft version: 3.1.5

[brandonkelly]

Correct. Is that something you need to set for each environment? Seems like 99% of the time the standard ports are used.

[rungta]

We use Mailtrap (25, 465, 2525) for our dev environment installs and Mailgun (25, 587, 465) or Amazon SES (25, 587, 2587) for staging and production installs, and since these services don’t always share the same port, we need to set separate port values on dev and production.

(25 is common but often blocked.)

[rungta]

Sendgrid and Mandrill both offer the same set: 25, 587, 2525

[echantigny]

I'm also looking into this. Locally, I use my gmail to test, but on the production server, it has it's own SMTP server that I can't use locally (blocked to localhost). I would like to be able to set the transport type somehow, and the port would be required too at this point.

EDIT: I have to add that I'm using the project.yaml file so this also gets saved there, which overwrites the transport type on my prod server.

[brandonkelly]

Alright, as of the next release it will be possible to set Port to an environment variable.

[echantigny]

Any chance that will include a way to set the transport type too? I would love to use the project config file, but impossible for me without a way to save that in a config.

[brandonkelly]

No that wouldn’t be possible; that’s why we allow you to override the mailer transport at runtime.