Hi, Thx for the tip. I checked it and in fact You were right :) Issue was because of wrong config of header_cache option in mutt. I had: set header_cache = on in my muttrc file. So my problem is solved now. Thx a lot. -- Best regards / Pozdrawiam Sławek Kapłoński slawek@kaplonski.pl On Sun, 18 Sep 2016, Oon-Ee Ng via arch-general wrote:

On Sat, Sep 17, 2016 at 7:48 PM, Sławek Kapłoński <slawek@kaplonski.pl> wrote:

...

Hello,

I found recently strange (for me) file in my home directory. Name of this file is "on":

[13:45:14] slawek@dell:~$ file on on: GNU dbm 1.x or ndbm database, little endian, 64-bit

I think that it is created by Mutt because when I removed it and started Mutt then it was created again.

Do You know what is this file for, what creates it (is it really Mutt) and maybe how can I disable creation of this file?

Given the name of that file, I'd suspect a misconfiguration of mutt. Re-check your config.