[arch-general] Strange file in home directory

[Oon-Ee Ng]

On Sat, Sep 17, 2016 at 7:48 PM, Sławek Kapłoński <slawek at 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 at 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.