Nagios (OP5) Postfix, Client does not have permissions to send as this sender - but testmail work

Question

i am this as i convert to Null- safety, and i keep getting this error

here is my code

try {
      final AuthorizationResult appleResult =
          await TheAppleSignIn.performRequests([
        AppleIdRequest(requestedScopes: [Scope?.email, Scope?.fullName])
      ]);
      if (appleResult.error != null) {
        // handle errors from Apple here
      }

      final AuthCredential credential = OAuthProvider('apple.com').credential(
        accessToken:
            String.fromCharCodes(appleResult.credential!.authorizationCode),//here the error coming out.... i have also try Uint8List.fromList but still showing the error
        idToken: String.fromCharCodes(appleResult.credential!.identityToken),//here the error coming out.... i have also try Uint8List.fromList but still showing the error
      );
      final firebaseResult = await auth.signInWithCredential(credential);
      users = firebaseResult.user;
      if (users == null) {
        return false;
      }
      return true;
    } catch (error) {
      print(error);
      return false;
    }

i have also try

Uint8List.from()

Solution

The error message from exchange was pretty clear here

550 5.7.1 Client does not have permissions to send as this sender

It means exchange only permitted your host to send email with sender [email protected]. Unfortunately notification email use [email protected] as sender address.

From OP5 Knowledge Base, there two options to solve your problem

• Using postfix generic maps. You need to tell postfix to rewrite the sender address from [email protected] to [email protected].

  # Postfix main.cf
  smtp_generic_maps = hash:/etc/postfix/generic
  
  #/etc/postfix/generic
  [email protected] [email protected]
  

  Don't forget to postmap the file

• Set --from parameter in notification commands. Append it with --from [email protected]. For example

  command_name=host-notify
  command_line=$USER3$/notify/poller_notify_send.pl --from [email protected] --other-argument
  

Comments

[masegaloeh]

Post the output of grep 04FDB80C87 maillog and grep E6D2D80D33 maillog

[jamesdlin]

Your problem is that String.fromCharCodes expects an Iterable<int>, but (appleResult.credential!.authorizationCode and appleResult.credential!.identityToken are Uint8List?. Using Uint8List.from won't help you because that works in the wrong direction. You need to check that your Uint8List? values aren't null first.

[Gbenga B Ayannuga]

how will i check the ? Uint8List? i have post my code, please can restructure the code @jamesdlin

[jamesdlin]

If you know that should not be null, then you can use .authorizationCode! and .identityToken!. Otherwise you will need to specify a default value to use if they are null (e.g. .authorizationCode ?? []) or add explicit checks. See stackoverflow.com/q/60068435.

[user276909]

The first option, i have already done. But the second solve my problem. Thank you very much for your help!!