Merge pull request 'staging' (#174) from staging into main

Reviewed-on: #174

src/model/mail.rs

@@ -128,26 +128,37 @@ Der Vorstand
                             .parse()
                             .unwrap());
                     let splitted = send_to.split(',');
+                    let send_mail = false;
                     for single_rec in splitted {
-                        email = email.bcc(single_rec.parse().unwrap());
+                        match single_rec.parse() {
+                            Ok(val) => {
+                                email = email.bcc(val);
+                                send_mail = true;
+                            }
+                            Err(_) => {
+                                println!("Error in mail: {single_rec}");
+                            }
+                        }
                     }
 
-                    let email = email
-                        .subject("ASKÖ Ruderverein Donau Linz | Vereinsgebühren")
-                        .header(ContentType::TEXT_PLAIN)
-                        .body(content)
-                        .unwrap();
+                    if send_mail {
+                        let email = email
+                            .subject("ASKÖ Ruderverein Donau Linz | Vereinsgebühren")
+                            .header(ContentType::TEXT_PLAIN)
+                            .body(content)
+                            .unwrap();
 
-                    let creds =
-                        Credentials::new("no-reply@rudernlinz.at".to_owned(), smtp_pw.clone());
+                        let creds =
+                            Credentials::new("no-reply@rudernlinz.at".to_owned(), smtp_pw.clone());
 
-                    let mailer = SmtpTransport::relay("mail.your-server.de")
-                        .unwrap()
-                        .credentials(creds)
-                        .build();
+                        let mailer = SmtpTransport::relay("mail.your-server.de")
+                            .unwrap()
+                            .credentials(creds)
+                            .build();
 
-                    // Send the email
-                    mailer.send(&email).unwrap();
+                        // Send the email
+                        mailer.send(&email).unwrap();
+                    }
                 }
             }
         }