[neomutt-users] Can't get IMAP running exchange 2016

[Lars Quentin]

Finally I "fixed it" (found a workaround).

Since plain doesn't work, exchange 2016 users have to use

set imap_authenticators="login"

although it is not listed as possible when asking it's capabilities via 
ssl session on the imap port.

Probably sth worth noting, I guess I'll write a blog post soon.

Sorry for spamming!
Lars Quentin

On 22.09.19 01:03, Lars Quentin wrote:
> Good evening,
> 
> I think I figured out the problem but I don't know how to fix it.
> 
> After reading the "RFC 4616.2. PLAIN SASL Mechanism", I saw that the 
> plain login in neomutt is tried as
> 
> ug-student\lars.quentin\0ug-student\lars.quentin\0my_secure_password
> 
> which doesn't work when I try it myself via openssl as well.
> 
> But when I decode it as
> 
> \0ug-student\lars.quentin\0my_secure_password
> 
> as told here (https://stackoverflow.com/a/14158574), it works.
> 
> How do I properly configure it that it leaves the first parameter empty? 
> Or am I missing the whole point?
> 
> Cheers
> Lars
> 
> On 21.09.19 22:31, Lars Quentin wrote:
>> Good evening,
>>
>> I sadly can't get imap running, even after hours of googling and reading.
>>
>> I just get a "Login failed"
>>
>> My IMAP-config:
>>
>> set imap_user = "lars.quentin at stud.uni-goettingen.de"
>> # set imap_user = "my-domain\\lars.quentin"
>> set imap_pass = "xxx"
>> set folder = 
>> "imaps://$imap_user:$imap_pass@email.stud.uni-goettingen.de:993"
>> # set folder = "imaps://email.stud.uni-goettingen.de:993"
>> set spoolfile = +INBOX
>>
>> set ssl_use_sslv3 = yes
>> set imap_check_subscribed = yes
>> set imap_keepalive = 300
>> set imap_passive = no
>>
>> Maybe relevant SMTP settings:
>> set ssl_force_tls = yes
>> set ssl_starttls = yes
>>
>> I tried to fix IMAP first, SMTP is not running but I guess as soon as 
>> IMAP works I'll figure out the rest.
>>
>> When connecting manually via
>>
>> openssl s_client -crlf -connect email.stud.uni-goettingen.de:993
>>
>> I get the
>> ---
>> * OK The Microsoft Exchange IMAP4 service is ready.
>>
>> The capability is
>> . capability
>> * CAPABILITY IMAP4 IMAP4rev1 AUTH=PLAIN SASL-IR UIDPLUS UNSELECT 
>> CHILDREN IDLE NAMESPACE LITERAL+
>> . OK CAPABILITY completed.
>>
>> And I can login manually and recieve messages.
>>
>> A login ug-student\lars.quentin my_pass
>> A OK LOGIN completed.
>> A status INBOX (messages)
>> * STATUS INBOX (messages 4548)
>> A OK STATUS completed.
>>
>> I put my debug file (logging level 5, censored just the plain) in the 
>> attachments, I am happy for any help!
>>
>> Cheers
>> Lars Quentin
>> (Sadly written with thunderbird)