diff --git a/content/blog/email-formatting.md b/content/blog/email-formatting.md
index e3f7dff..e712cc7 100644
--- a/content/blog/email-formatting.md
+++ b/content/blog/email-formatting.md
@@ -183,7 +183,7 @@ Daniel
 ```
 
 A Markdown formatter considers this to be one paragraph, and reflows it
-accordingly, causing it to lost semantic meaning:
+accordingly, causing it to lose semantic meaning:
 
 ```
 Best wishes, Daniel
@@ -222,14 +222,21 @@ Daniel
 > that trim trailing whitespace.**
 
 `mailfmt` detects sign-offs using a very simple heuristic. First, we check if a
-line has _5 or less_ words, and **ends with a comma**. If we find such a line,
-we check the _next_ line. If it has 5 or less words **that all begin with an
+line has _5 or fewer_ words and **ends with a comma**. If we find such a line,
+we check the _next_ line. If it has 5 or fewer words **that all begin with an
 uppercase letter**, then we assume these two lines are a _sign-off_, and we
-don't reflow or wrap them. The heuristic matches a very simple pattern:
+don't reflow or wrap them. The heuristic supports a very simple pattern:
 
 ```
 A courteous salutation,
-First Middle Last Name
+Prefix. First Middle Last, Suffix
+```
+
+For instance:
+
+```
+Sincerely,
+Rev. John Apple Smith, PHD.
 ```
 
 ### Signature blocks