chibenwa commented on code in PR #1561:
URL: https://github.com/apache/james-project/pull/1561#discussion_r1233326161


##########
server/protocols/jmap-rfc-8621/src/main/scala/org/apache/james/jmap/method/EmailSubmissionSetMethod.scala:
##########
@@ -319,23 +365,23 @@ class EmailSubmissionSetMethod @Inject()(serializer: 
EmailSubmissionSetSerialize
     val cc: List[Address] = 
Option(mimeMessage.getRecipients(RecipientType.CC)).toList.flatten
     val bcc: List[Address] = 
Option(mimeMessage.getRecipients(RecipientType.BCC)).toList.flatten
     for {
-      mailFrom <- Option(mimeMessage.getFrom).toList.flatten
+      mailFrom <- Try(Option(mimeMessage.getFrom).toList.flatten
         .headOption
         .map(_.asInstanceOf[InternetAddress].getAddress)
         .map(s => Try(new MailAddress(s)))
         .getOrElse(Failure(new IllegalArgumentException("Implicit envelope 
detection requires a from field")))
-        .map(EmailSubmissionAddress)
-      rcptTo <- (to ++ cc ++ bcc)
+        .get).map(EmailSubmissionAddress(_))
+      rcptTo <- Try((to ++ cc ++ bcc)
         .map(_.asInstanceOf[InternetAddress].getAddress)
         .map(s => Try(new MailAddress(s)))
-        .sequence
+        .map(s => EmailSubmissionAddress(s.get)))

Review Comment:
   Idem that's a very suspicious .get to me!



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