How do I make mail authenticate?

[Yuri Kanivetsky]

Hi,

I'm trying to send an email:

$ echo test mail | mail --debug-level all.prot --exec 'set
sendmail=smtps://yuri%40example.com:...;auth=plain@example.com' -s
'test mail' yuri@example.com

but it doesn't authenticate (doesn't send the AUTH command). Any suggestions?

Regards,
Yuri