(2022-07-28)
you can add a
Srv_features:(system)<tab>flags
to your /etc/mail/access to specifically turn settings on or off for problematic hosts.
On | Off | Description |
---|
a | A | Offer the AUTH SMTP extension |
b | B | Offer use of the SMTP VERB command |
d | D | Offer the DSN SMTP extension |
e | E | Offer the ETRN SMTP extension |
l | L | Require the client to authenticate with AUTH |
p | P | Offer the PIPELINING SMTP extension |
s | S | Offer the STARTTLS SMTP extension |
v | V | Verify a client certificate |
x | X | Offer use of the SMTP EXPN ... |
eg:
Srv_features:system.reverse.name S
Srv_features:1.2.3.4 a