Re: XOAUTH2 submission - "500 5.5.2 Line too long"
On 8.3.2022 18.33, Patrick Nagel wrote: 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]: Send: AUTH XOAUTH2 dXNlcj1yZXNwb3NpdAFhdXRoPWJlYXJlci<<<...*very long base64 string*>>> [08-Mar-2022 15:47:16 +0100]: 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. Unfortunately there were some issues with the initial fix to this. There were fixups after the release of 2.3.18 to community. https://github.com/dovecot/core/commit/667e206a017a48cf623f95f9837e79760be6309b (and commits right before)
Re: XOAUTH2 submission - "500 5.5.2 Line too long"
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]: Send: AUTH XOAUTH2 > dXNlcj1yZXNwb3NpdAFhdXRoPWJlYXJlci<<<...*very long base64 string*>>> > [08-Mar-2022 15:47:16 +0100]: 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.
XOAUTH2 submission - "500 5.5.2 Line too long"
Hello, 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]: Recv: 250-PIPELINING [08-Mar-2022 15:47:16 +0100]: Recv: 250 XCLIENT ADDR PORT PROTO HELO LOGIN SESSION TTL TIMEOUT FORWARD [08-Mar-2022 15:47:16 +0100]: Send: AUTH XOAUTH2 dXNlcj1yZXNwb3NpdAFhdXRoPWJlYXJlci<<<...*very long base64 string*>>> [08-Mar-2022 15:47:16 +0100]: Recv: 500 5.5.2 Line too long [08-Mar-2022 15:47:16 +0100]: Send: ** [4] [08-Mar-2022 15:47:16 +0100]: Recv: 221 2.0.0 Bye And, in dovecot logs I found: Mar 8 15:47:17 ### dovecot[97376]: submission-login: Debug: smtp-server: conn 172.18.6.100:38658 [1]: command EHLO: 250 reply: Sent: 250-###.<#> 8BITMIME AUTH PLAIN OAUTHBEARER XOAUTH2 BURL imap CHUNKING ENHANCEDSTATUSCODES SIZE PIPELINING XCLIENT ADDR PORT PROTO HELO LOGIN SESSION TTL TIMEOUT FORWARD Mar 8 15:47:17 ### dovecot[97376]: submission-login: Debug: smtp-server: conn 172.18.6.100:38658 [1]: command EHLO: Finished Mar 8 15:47:17 ### dovecot[97376]: submission-login: Debug: smtp-server: conn 172.18.6.100:38658 [1]: command EHLO: Destroy Mar 8 15:47:17 ### dovecot[97376]: submission-login: Debug: smtp-server: conn 172.18.6.100:38658 [1]: command EHLO: 250 reply: Destroy Mar 8 15:47:17 ### dovecot[97376]: submission-login: Debug: smtp-server: conn 172.18.6.100:38658 [1]: Trigger output Mar 8 15:47:17 ### dovecot[97376]: submission-login: Debug: smtp-server: conn 172.18.6.100:38658 [1]: No more commands pending Mar 8 15:47:17 ### dovecot[97376]: submission-login: Debug: smtp-server: conn 172.18.6.100:38658 [1]: Sending replies Mar 8 15:47:17 ### dovecot[97376]: submission-login: Debug: smtp-server: conn 172.18.6.100:38658 [1]: No more commands pending Mar 8 15:47:17 ### dovecot[97376]: submission-login: Debug: smtp-server: conn 172.18.6.100:38658 [1]: Client sent invalid command: Command line is too long Apparently, the problem came out after upgrading from dovecot 2.3.17 to 2.3.18 Any ideas ?
