If possible, please do change the setFrom() method to allow name and e-mail-adresse, can be found here: https://github.com/encircle360-oss/straightmail/blob/d45bb1e08ef69c7e15faac69a6aa1cd4d6fa394c/src/main/java/com/encircle360/oss/straightmail/service/EmailService.java#L143