In the OS X Mail app on my Macbook, I can't send messages from my fastmail account. I've tried several times putting in a New App Password from Fastmail. In Mail, I receive messages just fine. When I try to send something, I get the following popup message:
"Cannot send message using the server"
smtp.fastmail.com:xxxxxxxx@fastmail.net
"The SMTP connection to server 'smtp.fastmail.com' failed."
It lists the server in the menu as "smtp.fastmail.com:[myemailaddress]@fastmail.net".
I followed both the automatic instructions and then tried the manual instructions from Fastmail:
https://www.fastmail.com/help/clients/mac.html
https://www.fastmail.com/help/client...il-manual.html
I consulted this Fastmail.com page about "Email client sending issues", which wasn't any help:
https://www.fastmail.com/help/client...ingissues.html
Does anyone know what might be going on?