Cannot connect to server (Invalid CAPABILITY response received)

Expected behavior

Fetch mail

Actual behavior

Cannot connect to server (Invalid CAPABILITY response received)

Steps to reproduce

Capabilities returned from the IMAP server

a capability
* CAPABILITY IMAP4rev1 STARTTLS AUTH=PLAIN AUTH=LOGIN ID APPENDLIMIT
a OK CAPABILITY completed

Environment

K-9 Mail version: 5.600

Account type (IMAP, POP3, WebDAV/Exchange): IMAP

Please take some time to retrieve logs and attach them here:

TBD

[ibuclaw]

@cketti by the way would there be instructions for building + testing k-9/master?

In the meantime I’ve raised a support ticket and will get in touch with the developers of the SMTP server shortly…

[ibuclaw]

Managed to get debug information from the server component, which confirms what you said with the unsolicited CAPABILITY.

DEBU[Nov 17 00:05:57.865] * OK [CAPABILITY IMAP4rev1 STARTTLS AUTH=LOGIN AUTH=PLAIN ID APPENDLIMIT] IMAP4rev1 Service Ready  loc="127.0.0.1:1143" pkg=imap/server rem="127.0.0.1:33180"
DEBU[Nov 17 00:05:57.866] . CAPABILITY                                  loc="127.0.0.1:1143" pkg=imap/client rem="127.0.0.1:33180"
DEBU[Nov 17 00:05:57.867] * CAPABILITY IMAP4rev1 STARTTLS AUTH=PLAIN AUTH=LOGIN ID APPENDLIMIT  loc="127.0.0.1:1143" pkg=imap/server rem="127.0.0.1:33180"
DEBU[Nov 17 00:05:57.868] . OK CAPABILITY completed                     loc="127.0.0.1:1143" pkg=imap/server rem="127.0.0.1:33180"
DEBU[Nov 17 00:05:57.868] . STARTTLS                                    loc="127.0.0.1:1143" pkg=imap/client rem="127.0.0.1:33180"
DEBU[Nov 17 00:05:57.869] . OK Begin TLS negotiation now                loc="127.0.0.1:1143" pkg=imap/server rem="127.0.0.1:33180"
DEBU[Nov 17 00:05:57.880] * CAPABILITY IMAP4rev1 AUTH=PLAIN AUTH=LOGIN ID APPENDLIMIT  loc="127.0.0.1:1143" pkg=imap/server rem="127.0.0.1:33180"