Roger Klorese
2019-Sep-04 19:18 UTC
[Bug] Sieve vacation :addresses match only case-sensitive?
> > It is not recommended to rely on local-part case, but it is indeed > case-sensitive. > > And this is to avoid such issues that postfix supports address > cleanup/canonicalisation before forwarding mails to dovecot. > > ---------- > RFC 5321: > > "Local-part = Dot-string / Quoted-string ; MAY be case-sensitive > [?] > While the above definition for Local-part is relatively permissive, for > maximum interoperability, a host that expects to receive mail SHOULD avoid > defining mailboxes where the Local-part requires (or uses) the > Quoted-string form or where the Local-part is case-sensitive." > >And therefore ?receive liberally? policy that wants to assume case-insensitivity should single-case the address IN THE COMPARISON.> >-------------- next part -------------- An HTML attachment was scrubbed... URL: <dovecot.org/pipermail/dovecot/attachments/20190904/3d002a84/attachment.html>
Philipp Faeustlin
2019-Sep-09 13:17 UTC
[Bug] Sieve vacation :addresses match only case-sensitive?
> It is not recommended to rely on local-part case, but it is indeed > case-sensitive. > > And this is to avoid such issues that postfix supports address > cleanup/canonicalisation before forwarding mails to dovecot. > > ---------- > RFC 5321: > > "Local-part ? ? = Dot-string / Quoted-string ; MAY be case-sensitive > [?] > While the above definition for Local-part is relatively permissive, > for maximum interoperability, a host that expects to receive mail > SHOULD avoid defining mailboxes where the Local-part requires (or > uses) the Quoted-string form or where the Local-part is case-sensitive." > > > > > And therefore ?receive liberally? policy that wants to assume > case-insensitivity should single-case the address IN THE COMPARISON. > >The local-part MAY be case-sensitive, but in general I don't know any mail addresses where the case matters. Thus it is hard for me to understand, why this comparison of the vacation address is case-sensitive. Whether the final recipients address is also treated case-insensitive. If this has to be case-sensitive to be RFC compliant, then please create an option for admins or users to change the behavior to an case-insensitive comparison. -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 5359 bytes Desc: S/MIME Cryptographic Signature URL: <dovecot.org/pipermail/dovecot/attachments/20190909/8bead702/attachment.p7s>
Sami Ketola
2019-Sep-09 13:58 UTC
[Bug] Sieve vacation :addresses match only case-sensitive?
> On 9 Sep 2019, at 16.17, Philipp Faeustlin via dovecot <dovecot at dovecot.org> wrote: > >> It is not recommended to rely on local-part case, but it is indeed >> case-sensitive. >> And this is to avoid such issues that postfix supports address >> cleanup/canonicalisation before forwarding mails to dovecot. >> ---------- >> RFC 5321: >> "Local-part = Dot-string / Quoted-string ; MAY be case-sensitive >> [?] >> While the above definition for Local-part is relatively permissive, >> for maximum interoperability, a host that expects to receive mail >> SHOULD avoid defining mailboxes where the Local-part requires (or >> uses) the Quoted-string form or where the Local-part is case-sensitive." >> And therefore ?receive liberally? policy that wants to assume case-insensitivity should single-case the address IN THE COMPARISON. > The local-part MAY be case-sensitive, but in general I don't know any mail addresses where the case matters. > Thus it is hard for me to understand, why this comparison of the vacation address is case-sensitive. Whether the final recipients address is also treated case-insensitive. > > If this has to be case-sensitive to be RFC compliant, then please create an option for admins or users to change the behavior to an case-insensitive comparison. >Just change auth_username_format = %Lu to make all addresses lowercase. That should solve your problem. Or if you REALLY REALLY want to have case-sensitive userpart, then use auth_username_format = %n@%Ld Sami
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