Serilog-sinks is not sending email in docker container when error occurs

[liaoqixiang]

Log.Logger = new LoggerConfiguration() .WriteTo.Console(restrictedToMinimumLevel: LogEventLevel.Verbose) .WriteTo.Email(new EmailConnectionInfo() { FromEmail = configuration["Email:fromEmail"], EmailSubject = configuration["Email:subjectEmail"], ToEmail = configuration["Email:toEmail"], MailServer = configuration["Email:mailServer"], }, restrictedToMinimumLevel: LogEventLevel.Error) .CreateLogger();

This is my setting. It can send email in local environment but not in docker container. Could anyone have a look to see what is going on?

[merbla]

@liaoqixiang initial thoughts relate to network communication being an issue. How are you addressing your email server (e.g. IP vs DNS)? What ports have you exposed?

[liaoqixiang]

@merbla Hi there, your thought is I haven't set up the port correctly? there is no setting about port in my docker compose file. I guess it is port 80? my email server is smtp server

[merbla]

Are you resolving the email server via DNS?

[liaoqixiang]

@merbla I think it's IP? It is in my company.

[liaoqixiang]

@merbla I think I need to check the port tomorrow. Thanks

[liaoqixiang]

@merbla I have tried different ports. It seems it's still not working. This web API is using port 80.

[merbla]

@liaoqixiang can you try logging to the Serilog console and also use SelfLog to expose any errors that might be occurring.

e.g. https://github.com/serilog/serilog/wiki/Debugging-and-Diagnostics#selflog

[merbla]

@liaoqixiang if you can post an example of the issue that might help working out the details. My assumption is that it will relate to configuration in Docker.

[liaoqixiang]

@merbla

Here are all the settings.

Docker file:

FROM microsoft/aspnetcore:2.0.6 ARG source WORKDIR /app EXPOSE 80 COPY ${source:-obj/Docker/publish} . ENV TZ=NZ RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ /etc/timezone ENTRYPOINT ["dotnet", "PPPECSInterface.dll"]

Dokcer-compose file: version: '3.4'

services: pppecsinterface: image: pppecsinterface build: context: ./ECS dockerfile: Dockerfile

Docker-compose-override: version: '3.4'

services: pppecsinterface: environment:

• ASPNETCORE_ENVIRONMENT=Development ports:
• "80"

Program.cs public static IWebHost BuildWebHost(string[] args) => WebHost.CreateDefaultBuilder(args)

// .UseKestrel() // .UseIISIntegration() .UseStartup() // .UseUrls("http://0.0.0.0:80") .UseDefaultServiceProvider(options => options.ValidateScopes = false) .Build();

[liaoqixiang]

@merbla I don't see there is a problem of port. It's totally ok if I send email from docker using smtpclient class provided in .net.

[nblumhardt]

Closing this one as stale, hope you were able to find a resolution.