Hi, On Tuesday, 8 March 2022 16:12:48 CET Rosario Esposito wrote: > I setup a dovecot submission server, using xoauth2 authentication. > My roundcube webmail points to dovecot submission. > In roundcube smtp logs, I see: > [...] > [08-Mar-2022 15:47:16 +0100]: <qjonb57c> Send: AUTH XOAUTH2 > dXNlcj1yZXNwb3NpdAFhdXRoPWJlYXJlci<<<...*very long base64 string*....>>> > [08-Mar-2022 15:47:16 +0100]: <qjonb57c> Recv: 500 5.5.2 Line too long > > Apparently, the problem came out after upgrading from dovecot 2.3.17 to > 2.3.18
Interesting, the changelog (https://github.com/dovecot/core/releases/tag/2.3.18) says: - submission-login: Authentication does not accept OAUTH2 token (or other very long credentials) because it considers the line to be too long. But sorry, not much else I can contribute, I'm just a random passerby. Patrick.
