Default mail app refuses to check my inbox and fails when trying to configure the folders

[mpxlbs]

Using hrev52713 x64 in UEFI mode.

I use One.com and have been for about 3-4 years now. Their server settings are:

imap v4 imap.one.com:ssl:993 send.one.com:ssl:465 Use Authentication: Yes Use SSL/TLS/STARTTLS: Yes

Set up the e-mail application as follows.

Accounts

MyEmail@MyDomain.CC

Account name: MyEmail@MyDomain.CC Real Name: MyRealName Return address: MyEmail@MyDomain.CC

Incoming

Imap

Mail server: imap.one.com Username: MyEmail@MyDomain.CC Password: MyRandomGeneratedPassword Connection type: SSL [x] Remove mail from server when deleted [ ] Partially download messages larger than [ ] Destination: /boot/home/mail/in

Outgoing

SMTP server: send.one.com Username: MyEmail@MyDomain.CC Password: SameAsIncoming Connection type: SSL Login type: ESMTP Destination: /boot/home/mail/out

Settings

[X] Check every [5] minutes Show notifications [While sending and receiving.

No mails can be recieved. Mail folder configuration not downloaded.

Under incoming, I can select

Configure IMAP Folders

Doing so results in

Imap Folders

Failed to fetch available storage

Could not connect to server "imap.one.com: Invalid Argument.

Syslog does not show any relevant errors that I can see. Where would I look for them? Maybe you can see them.

[mpxlbs]

Syslog output file.