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SMTP adapter is broken in Docker image #1009

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taobojlen opened this issue Jul 10, 2022 · 0 comments
Open

SMTP adapter is broken in Docker image #1009

taobojlen opened this issue Jul 10, 2022 · 0 comments
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bug Something isn't working

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@taobojlen
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Describe the bug
When self-hosting Papercups with docker compose, the SMTP mailer is broken.

To Reproduce
Steps to reproduce the behavior:

  1. Open iex
  2. import Swoosh.Email
  3. Try to send an email like new() |> from("[email protected]") |> to("[email protected]") |> subject("Hi there") |> text_body("Testing SMTP integration") |> ChatApi.Mailers.deliver(). You will see the following error:
** (ArgumentError) argument error
    :erlang.split_binary('250-smtp.ohmysmtp.com Nice to meet you, static.106.78.235.167.clients.your-server.de\r\n', 3)
    (gen_smtp 0.15.0) /app/deps/gen_smtp/src/binstr.erl:114: :binstr.substr/3
    (gen_smtp 0.15.0) /app/deps/gen_smtp/src/gen_smtp_client.erl:697: :gen_smtp_client.read_possible_multiline_reply/1
    (gen_smtp 0.15.0) /app/deps/gen_smtp/src/gen_smtp_client.erl:562: :gen_smtp_client.try_EHLO/2
    (gen_smtp 0.15.0) /app/deps/gen_smtp/src/gen_smtp_client.erl:623: :gen_smtp_client.do_STARTTLS/2
    (gen_smtp 0.15.0) /app/deps/gen_smtp/src/gen_smtp_client.erl:594: :gen_smtp_client.try_STARTTLS/3
    (gen_smtp 0.15.0) /app/deps/gen_smtp/src/gen_smtp_client.erl:333: :gen_smtp_client.open_smtp_session/2
    (gen_smtp 0.15.0) /app/deps/gen_smtp/src/gen_smtp_client.erl:271: :gen_smtp_client.try_smtp_sessions/3

Expected behavior
Sending the email works.

Additional context
I believe this is caused by this bug: gen-smtp/gen_smtp#250

If that's the case, using a more recent version of Elixir/OTP in the Docker image would fix it, as would updating gen_smtp.

@taobojlen taobojlen added the bug Something isn't working label Jul 10, 2022
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