Thunderbird 45.0 发布。 更新如下： New Add a Correspondents column combining Sender and Recipient New Much better support for XMPP chatrooms and commands. New Implement option to always use HTML formatting to prevent unexpected format loss when converting messages to plain text. New Use OpenStreetmap for maps (even allow the user to choose from list of map services) New Allow spell checking and dictionary selection in the subject line New Add dropdown in compose to allow specific setting of font size. New Return/Enter in composer will now insert a new paragraph by default (shift-Enter will insert a line break) New Mail.ru supports OAuth authentication. New Improved options for remote content exceptions (but previous settings based on the sender's email address are not migrated, so these need to be added again by users). New Allow editing of From when composing a message. New Allow copying of name and email address from the message header of an email Fixed Fixed: When sending e-mail which was composed using Chinese, Japanese or Korean characters, unwanted extra spaces were inserted within the text. Fixed XMPP had connection problems for users with large rosters Fixed Spell checker checked spelling in invisible HTML parts of the message. Fixed When saving a draft that is edited as new message, original draft was overwritten. Fixed External images not displayed in reply/forward Fixed Properly preserve pre-formatted blocks in message replies. Fixed Crashed in some cases while parsing IMAP messages. Fixed Copy/paste from a plain text editor lost white-space (multiple spaces/blanks, tabs, newlines) Fixed "Open Draft"/"Forward"/"Edit As New"/"Reply" created message composition with incorrect character encoding. Fixed Fixed: Grouped By view sort direction change was broken, plus enabled custom column grouping. Fixed Fixed: New emails into a mailbox did not adhere to sort order by received. Fixed Fixed: Box.com attachments failed to upload. Fixed Fixed: Drag and drop of multiple attachments failed to OS file folder. 下载地址：https://www.mozilla.org/zh-CN/thunderbird/ Thunderbird 45.0 发布，邮件客户端下载地址
