To send mail from acme on native Plan 9 via gmail, this is what just
worked for me:
- make sure the last line of /mail/lib/rewrite is
([^!]*)!(.*) | "/mail/lib/qmail '\s' 'net!$smtp'"
"'\2@\1'"
- change /mail/lib/remotemail to add the '-a' flag to smtp
exec /bin/upas/smtp -a -d -h $fd $addr $sender $*
- define $smtp for my local network in /lib/ndb/local
ipnet=localnet
ip=192.168.0.0 ipmask=255.255.0.0
smtp=smtp.gmail.com
ntp=pool.ntp.org
...
- give factotum the password for my gmail account
auth/factotum -g 'proto=pass service=smtp server=smtp.gmail.com user?
!password?'
- add a tls thumbprint for the gmail server to /sys/lib/tls/smtp
x509 sha1=9C0ACC931DE7513790616BA11828679554C569A8 server=smtp.gmail.com
(I found the hash by trying to send once, then looking in /sys/log/smtp)
- finally, after receiving a "Google Account: sign-in attempt blocked"
email from google, followed their suggestion to:
"change your settings at
https://www.google.com/settings/security/lesssecureapps so that your
account is no longer protected by modern security standards."
I guess upas/smtp is considered a less secure app.
BTW, when having trouble sending email it's often useful to look
in /sys/log/smtp and /sys/log/smtp.fail
