SSL certificate problem: self-signed certificate

[p-w-rs]

I am trying to send an email with my ProtonMail account, I have bridge installed which runs an smtp server on my local machine at 127.0.0.1:1025 and uses SSL for security, the bridge then relays my email to ProtonMail servers which don't support smtp directly for security reasons, thus they created the bridge.

When I do this I get his error when running send:

* processing: smtps://127.0.0.1:1025
*   Trying 127.0.0.1:1025...
* Connected to 127.0.0.1 (127.0.0.1) port 1025
*  CAfile: /opt/homebrew/Cellar/julia/1.9.2/share/julia/cert.pem
*  CApath: none
* SSL certificate problem: self-signed certificate
* Closing connection
┌ Error: ERROR:
│   exception =
│    curl_easy_perform() failed: SSL peer certificate or SSH remote key was not OK
│    Stacktrace:
...

So I need to figure out how to solve this certificate issue?

Here is my code:

url = "smtps://127.0.0.1:1025"
opt = SendOptions(
  isSSL=true,
  username=ENV["BRIDGE_UNAME"],
  passwd=ENV["BRIDGE_PASS"],
  verbose=true
)

function send_email2(name, sender, receiver, subject, message, attachments)
    global url, opt

    to = ["<$receiver>"]
    from = "$name <$sender>"
    replyto = sender
    body = get_body(to, from, subject, message; replyto, attachments)
    
    resp = send(url, to, from, body, opt)
end

[p-w-rs]

I have a solution just add cacert to the SendOptions struct

mutable struct SendOptions
  isSSL::Bool
  username::String
  passwd::String
  cacert::String
  verbose::Bool
end

and then use a default value of LibCURL.cacert

function SendOptions(; isSSL::Bool = false, username::AbstractString = "",
                     passwd::AbstractString = "", cacert = LibCURL.cacert, verbose::Bool = false, kwargs...)
...

And then we can do this:

if options.isSSL
    @ce_curl curl_easy_setopt curl CURLOPT_USE_SSL CURLUSESSL_ALL
    @ce_curl curl_easy_setopt curl CURLOPT_CAINFO options.cacert
  end

[aviks]

Yeah, that sounds like a decent design. Would you make a PR? I'd probably add cacert as the last parameter in the list, after verbose.