Hi folks!
I've found the same strange autoresponder in many accounts on my servers running WHM cPanel.
They seems to be suspicious, cause they have in subject the variable "Re: %subject%" ad so could be used by spammers as target.
I found that the file is located in:
/home/xxxxxxx/.autorespond/info_log
and contains some error message like this:
[2010-08-04 15:36:24 +0200] info [autorespond] Failed to parse sender identity for message sent to
[email protected]
[2011-03-05 15:36:24 +0200] info [autorespond] Failed to parse sender identity for message sent to
[email protected]
So I argued that:
1. this is not a dangerous file but a log file automatically created by the system (Exim?)
2. parsing errors are often related to malformed spam headers
3. cPanel front-end read all files located in /home/xxxxxxx/.autorespond/ and treat them like a standard autoresponder files
4 cPanel use the name of file as sender and adds some default options such as "Re: %subject%"
5. you can of course delete this file by cPanel interface, like a normal autoresponder (but you cant' edit it)
I think that storing this log in the same location of autoresponder file can be confusing.
I hope this will help.