A lot more typo fixes by Ori Avtalion.
diff --git a/Doc/library/mailbox.rst b/Doc/library/mailbox.rst
index 5192acb..972ce70 100644
--- a/Doc/library/mailbox.rst
+++ b/Doc/library/mailbox.rst
@@ -433,7 +433,7 @@
original format, which is sometimes referred to as :dfn:`mboxo`. This means that
the :mailheader:`Content-Length` header, if present, is ignored and that any
occurrences of "From " at the beginning of a line in a message body are
-transformed to ">From " when storing the message, although occurences of ">From
+transformed to ">From " when storing the message, although occurrences of ">From
" are not transformed to "From " when reading the message.
Some :class:`Mailbox` methods implemented by :class:`mbox` deserve special
@@ -581,7 +581,7 @@
.. method:: MH.close()
- :class:`MH` instances do not keep any open files, so this method is equivelant
+ :class:`MH` instances do not keep any open files, so this method is equivalent
to :meth:`unlock`.