Thunderbird 45.2.0 on Mac won't send emails. No error message. Can't find Add-ons.
Thunderbird abruptly stopped sending mail. No error message shown. The mail just sits there.
Tried sending from another account. Same. The same server settings work fine on another computer from my home.
I read the knowledge base and it recommended checking add-ons. But I cannot find any under Tools or anywhere else.
Server type: IMAP Mail server: mail.pobox.com Port 993 SSL/TLS Normal password
Outgoing server: smtp.pobox.com Port: 465 SSL/TLS Normal password
Thunderbird abruptly stopped sending mail.
No error message shown. The mail just sits there.
Tried sending from another account. Same.
The same server settings work fine on another computer from my home.
I read the knowledge base and it recommended checking add-ons.
But I cannot find any under Tools or anywhere else.
Server type: IMAP
Mail server: mail.pobox.com
Port 993
SSL/TLS
Normal password
Outgoing server: smtp.pobox.com
Port: 465
SSL/TLS
Normal password
被采纳的解决方案
On the toolbar 
then 
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选择的解决方案
On the toolbar then