Support for configuring SMTP email at project level

[rvndbalaji]

Describe the feature or potential improvement

Support for configuring SMTP email within the application

1. As an admin I would like to configure one SMTP server per project
2. I would also require the ability to configure SMTP port number and smtp_starttls
3. I would like the configuring of email within the application rather than at the env variable

Additional information

No response

[marcklingen]

This is unfortunately outside of the scope of the project as these credentials are to be maintained on an instance level and should not be exposed to users or project admins. Is it an option for you to set this at the instance level?

[rvndbalaji]

@marcklingen
I did set it at the instance level, but my smpt has the following configuration

sender = "no-reply@company.com"
 smtp_server = "smartmail.company.net"
 smtp_port = 25
 smtp_starttls = True

When I do put this in the config, there is no option to set the PORT number
I get the following error

Error: connect ECONNREFUSED 127.0.0.1:587     at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1607:16)     at TCPConnectWrap.callbackTrampoline (node:internal/async_hooks:130:17) {
  errno: -111,
  code: 'ESOCKET',
  syscall: 'connect',
  address: '127.0.0.1',
  port: 587,
  command: 'CONN'

Im not sure why this is happening, when I call the same config via python to send an email it works perfectly from the same pod
Any ideas?

[marcklingen]

how did you turn this into a connection string?

we pass the connection string to parseConnectionUrl of nodemailer, more on this here: https://nodemailer.com/smtp/#:~:text=Alternatively%2C%20you%20could%20use%20a%20connection%20url%20instead%20of%20an%20object%20for%20the%20options.%20Use%20%E2%80%98smtp%3A%27%20or%20%E2%80%98smtps%3A%27%20as%20the%20protocol%20in%20the%20url.

[rvndbalaji]

OHHHHHH!

In the docs it says
SMTP_CONNECTION_URL |   | Configure optional SMTP server connection for transactional email.

I totally missed the URL part, I put the SMTP host instead !! This was stupid of me
I tried it with this -smtp://smartmail.company.net:25?starttls=true and it worked

(Maybe we could add an example in the docs?)

Thank you

[marcklingen]

Awesome, glad that it works! I updated the docs to include a reference to nodemailer: langfuse/langfuse-docs@607f29d

[rvndbalaji]

You guys are quick. I just started using LangFuse and I have some suggestions as I came over from LangSmith,
Ill start a new thread

[marcklingen]

Thanks! Happy to help

Please add new ideas here: langfuse.com/ideas