Bug 1734070 followup - Fix two tests. r=mkmelin

Differential Revision: https://phabricator.services.mozilla.com/D127604

--HG--
extra : amend_source : c109bbabe76e678a9da413c98c005eff471718f0

mailnews/compose/src/SmtpClient.jsm

@@ -194,7 +194,7 @@ class SmtpClient {
             break;
           }
         }
-        if (firstInvalid != null) {
+        if (!recipient || firstInvalid != null) {
           if (!lastAt) {
             // Invalid char found in the localpart, throw error until we implement RFC 6532.
             this.onerror(NS_ERROR_BUT_DONT_SHOW_ALERT, null);

mailnews/compose/src/SmtpService.jsm

@@ -100,7 +100,7 @@ SmtpService.prototype = {
       fresh = false;
       let from = sender;
       let to = MailServices.headerParser
-        .parseEncodedHeader(decodeURIComponent(recipients))
+        .parseEncodedHeaderW(decodeURIComponent(recipients))
         .map(rec => rec.email);
 
       if (
@@ -114,7 +114,7 @@ SmtpService.prototype = {
           .msgGenerateMessageId(userIdentity);
       }
       client.useEnvelope({
-        from: MailServices.headerParser.parseEncodedHeader(
+        from: MailServices.headerParser.parseEncodedHeaderW(
           decodeURIComponent(from)
         )[0].email,
         to,

mailnews/compose/test/unit/test_bcc.js

@@ -308,7 +308,7 @@ add_task(async function testBccOnlyWithSendLater() {
       // Should not include RCPT TO:<undisclosed-recipients: ;>
       do_check_transaction(gServer.playTransaction(), [
         "EHLO test",
-        "MAIL FROM:<from@tinderbox.invalid> BODY=8BITMIME SIZE=408",
+        `MAIL FROM:<from@tinderbox.invalid> BODY=8BITMIME SIZE=${gServer._daemon.post.length}`,
         "RCPT TO:<bcc@tinderbox.invalid>",
         "DATA",
       ]);