This Aspire Integration runs MailPit in a container.
The MailPit integration exposes a connection string with the format endpoint=smtp://<host>:<port>.
This connection string can be used to with a DbConnectionStringBuilder to get the smtp endpoint.
var builder = DistributedApplication.CreateBuilder(args);
var mailpit = builder.AddMailPit("mailpit");
var xyz = builder.AddProject<Xyz>("application")
.WithReference(mailpit)
.WaitFor(mailpit);
builder.Build().Run();var builder = DistributedApplication.CreateBuilder(args);
var mailpit = builder.AddMailPit("mailpit", 80, 25);
var xyz = builder.AddProject<Xyz>("application")
.WithReference(mailpit)
.WaitFor(mailpit);
builder.Build().Run();