hi
You need to enable the LDAP login feature and configure related settings.
https://docs.abp.io/en/commercial/latest/modules/account/ldap
https://github.com/abpframework/abp/issues/10916#issuecomment-993261785
Please also configure it in the project that calls SendEmailConfirmationLinkAsync.
Do you have similar code like below?
Configure<AppUrlOptions>(options =>
{
options.Applications["MVC"].RootUrl = configuration["App:SelfUrl"]; // "SelfUrl": "https://localhost:44303"
});
https://github.com/abpframework/abp/pull/8916
You can consider to custom the MultiTenancyMiddlewareErrorPageBuilder
Check your app logs.
You just need to remove the NullEmailSender. Global search NullEmailSender in your solution.
Can you try to remove this?
#if DEBUG
context.Services.Replace(ServiceDescriptor.Singleton<IEmailSender, NullEmailSender>());
#endif