Fix typos (#599)

* Fix typos

* Fix typos in excluded files

tests/resources/jmap/sieve/test_mailbox.sieve

@@ -15,7 +15,7 @@ if specialuse_exists "dingleberry" {
 }
 
 if specialuse_exists "archive" {
-    error "A non-existant special-use exists.";
+    error "A non-existent special-use exists.";
 }
 
 # MailboxId tests

tests/resources/smtp/antispam/replyto.test

@@ -1,4 +1,4 @@
-expect REPLYTO_UNPARSEABLE
+expect REPLYTO_UNPARSABLE
 
 Reply-to: hello
 

tests/src/jmap/auth_acl.rs

@@ -180,7 +180,7 @@ pub async fn test(params: &mut JMAPTest) {
         .await
         .unwrap();
 
-    // John shoud have ReadItems access to Inbox
+    // John should have ReadItems access to Inbox
     assert_eq!(
         john_client
             .set_default_account_id(&jane_id.to_string())

tests/src/jmap/delivery.rs

@@ -498,7 +498,7 @@ impl SmtpConnection {
 
 pub trait AssertResult: Sized {
     fn assert_contains(self, text: &str) -> Self;
-    fn assert_count(self, text: &str, occurences: usize) -> Self;
+    fn assert_count(self, text: &str, occurrences: usize) -> Self;
     fn assert_equals(self, text: &str) -> Self;
 }
 
@@ -512,12 +512,12 @@ impl AssertResult for Vec<String> {
         panic!("Expected response to contain {:?}, got {:?}", text, self);
     }
 
-    fn assert_count(self, text: &str, occurences: usize) -> Self {
+    fn assert_count(self, text: &str, occurrences: usize) -> Self {
         assert_eq!(
             self.iter().filter(|l| l.contains(text)).count(),
-            occurences,
+            occurrences,
             "Expected {} occurrences of {:?}, found {}.",
-            occurences,
+            occurrences,
             text,
             self.iter().filter(|l| l.contains(text)).count()
         );

tests/src/smtp/inbound/dmarc.rs

@@ -290,7 +290,7 @@ async fn dmarc() {
         .await;
     qr.assert_no_events();
 
-    // Messagess passing DMARC should be accepted
+    // Messages passing DMARC should be accepted
     session
         .send_message(
             "bill@example.com",

tests/src/smtp/inbound/mail.rs

@@ -303,7 +303,7 @@ async fn mail() {
     assert_eq!(session.data.future_release, 10);
     session.rset().await;
 
-    // Test FUTURERELEASE extension with invalud HOLDUNTIL value
+    // Test FUTURERELEASE extension with invalid HOLDUNTIL value
     session
         .ingest(format!("MAIL FROM:<jane@foobar.org> HOLDUNTIL={}\r\n", now + 99999).as_bytes())
         .await

tests/src/smtp/lookup/sql.rs

@@ -220,7 +220,7 @@ async fn lookup_sql() {
     // External domain
     session.rcpt_to("user@otherdomain.org", "550 5.1.2").await;
 
-    // Non-existant user
+    // Non-existent user
     session.rcpt_to("jack@foobar.org", "550 5.1.2").await;
 
     // Valid users