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Topic: Forum messages marked as spam

Hello dear friend,
I have reports from users of my forum http://forexsb.com/forum/ that they receive their e-mail registration confirmation as spam.

Now I received returned mail from Yahoo that say "Remote host said: 421 4.7.1 [TS03] All messages from 206.212.247.135 will be permanently deferred;" where this is the IP of my hosting company.

I have never sent mass e-mails or any spam. 

Is it possible the forum to be hacked or infected?
How can I check if fake emails are sent from my website or forum.?

Thank you!

I'm using PunBB at Forex Forum since 2006.

Re: Forum messages marked as spam

Check which IP is sending your forum mail

then check it here
http://www.projecthoneypot.org
and
http://www.stopforumspam.com/search?q=

I received the PunBB.org mail [reply to topic] to my spam folder today.
Maybe more information, specific to user has to be added so that spam software doesn't filter it into spam folder....

Edit: Based on your IP info above checked though
http://www.ip2location.com/demo.aspx
it comes up with
ISP: COLOSTORE.COM   
Domain: MAILMANAGER.COM.AU
maybe your host got blacklisted because ofactivity from other domains etc that's been happening

BTW! Your IP (not one above) comes up as
detected behavior from the IP address consistent with that of a mail server and dictionary attacker. (check here: http://www.projecthoneypot.org)

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Re: Forum messages marked as spam

I found the mail server blacklisted. I reported the problem to the hosting company ( Fcolor ) and they ensure me that they will make their best to solve the problem.

Also their certificate was expired looong ago:

http://forexstrategybuilder.com/img/certificate.png

Can I do anything more in order to protect my website and forum?

I'm using PunBB at Forex Forum since 2006.

Re: Forum messages marked as spam

The problem isn't your forum (I believe).
It's your host (based on the above, i.e. missing certificates, blacklisted).
Generally speaking though: use latest version, latest hotfixes...