On 2025-01-13 12:25, Tomasz Pala via Postfix-users wrote: > > OTOH https://datatracker.ietf.org/doc/html/rfc1035#section-2.3.1: > > <domain> ::= <subdomain> | " " > <subdomain> ::= <label> | <subdomain> "." <label> > <label> ::= <letter> [ [ <ldh-str> ] <let-dig> ] > > - so strictly speaking the domain name also cannot end with a dot, > and RFC 5321 is right not mentioning this.
The not-so-common idea of dot-ending domains comes from this: https://datatracker.ietf.org/doc/html/rfc1035#section-3.1 "Since every domain name ends with the null label of the root, a domain name is terminated by a length byte of zero." but this is being said in a "in-wire", not application, context: "Domain names *in messages* are expressed in terms of a sequence of labels. Each label is represented as a one octet length field followed by that number of octets." To sum this up: master file: sub.domain. or sub in wire msg: sub.domain. application: sub.domain _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
