New Mail Server | 14 Bounced Messages from my Domain Email

I don't think this is necessarily the best fit category to post this
but it does fit and I know you guys would be most knowledgeable about
this.

I changed hosts last night for my website and domain email.

I was with IPower and now I'm with Grabweb.

I'm very happy with the service, Plesk control panel, and latency of
the website but I'm a little alerted by the mail server.

What I did is create one account ****@abc.com and enabled catchall.
Before this I had about 50 accounts at IPower and catchall also
enabled. I set an autoreply on the new server to let clients know of
the temporary changeover in case any problems would arise.

For my desktop I use a linux distro and Thunderbird for my mail client.
In my inbox today was about 14 bounced emails coming from ****@abc.com
(the one email account I have set up). The message that bounced back
was my autoreply message and an error message saying it couldn't be
delivered. I'm guessing this is happening because I'm receiving spam
and then my autoreply is going out to the forged address and bouncing
back. The only weird thing is that I'm not getting any spam emails
into my inbox and I have all spam filters turned off for the server.

Ever since switching I'm also getting spam directed at wild-card
guesses like q@xxxxxxxxxx strange that I never received ANY spam like
this at IPower even though I always have had catchall enabled.

Any ideas?

.

Relevant Pages

  • Re: How to do rDNS. WAS: RE: educating rDNS violators
    ... It's done in the DNS server. ... As a spam prevention measure, a lot of end-user Internet providers are ... Using your own mail server as a slave to the ISP's mail server will add ...
    (Security-Basics)
  • RE: OMA and Outgoing Spam
    ... Someone hacked a user account and use it to spam emails; ... Your Exchange server is open relaying emails;(You have checked it ... Your server is under RNDR Attack. ... Microsoft is providing this information as a convenience to you. ...
    (microsoft.public.windows.server.sbs)
  • RE: OMA and Outgoing Spam
    ... Someone hacked a user account and use it to spam emails; ... Your Exchange server is open relaying emails;(You have checked it ... Your server is under RNDR Attack. ... When you enable recipient filtering on the SMTP virtual server, ...
    (microsoft.public.windows.server.sbs)
  • Re: Anyone succesfully stopped Reverse NDR Attacks in exchange 2000?
    ... to their filtering servers and the Spam stops filling your Exchange Queues ... and destined to an non existing address on your server. ... connecting addresses as there are spam sent. ...
    (microsoft.public.exchange2000.admin)
  • Re: educating rDNS violators
    ... Our previous mail server setup included refusing all messages coming from ... Another way to catch a fair amount of spam is to require that the "From:" ... MX records to the filter then the filter would forward mail to our SMTP ...
    (Security-Basics)