pub enum SmtpTls {
None,
StartTls,
ImplicitTls,
}Expand description
Controls TLS mode for SMTP connections.
Use StartTls for port 587 (opportunistic STARTTLS
upgrade) and ImplicitTls for port 465 (TLS
wrapper). None is permitted only for localhost and logs
a warning at construction time.
Variants§
None
No TLS. Only allowed for localhost / 127.0.0.1. Logs a warning.
StartTls
STARTTLS upgrade (RFC 3207). Default for port 587.
ImplicitTls
Implicit TLS wrapper. Default for port 465.
Trait Implementations§
impl Copy for SmtpTls
impl Eq for SmtpTls
impl StructuralPartialEq for SmtpTls
Auto Trait Implementations§
impl Freeze for SmtpTls
impl RefUnwindSafe for SmtpTls
impl Send for SmtpTls
impl Sync for SmtpTls
impl Unpin for SmtpTls
impl UnsafeUnpin for SmtpTls
impl UnwindSafe for SmtpTls
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