Undelivered/Bounced Emails From Site

Good Day Joomla team,

All mail sent from my classified site returns to my Yahoo inbox/spam as being undelivered. Please see sample below. additionally, when my first user created a profile on the site the activation link that is too be sent in email to a gmail account also returned to my mailbox as undelivered. I would appreciate your assistance in resolving the issue as I am almost ready to complete my modifications and testing to take the website live.

Kind Regards,
Shamaie Alleyne


_________________________________________

---

Forwarded Message

---

This is the mail system at host lamp107.cloudaccess.net.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The mail system

<This email address is being protected from spambots. You need JavaScript enabled to view it.>: host mx3.cloudaccess.net[199.116.78.32] said: 550
5.7.1 Blocked by SpamAssassin (in reply to end of DATA command)
Hello

Advert ''Apartment for Rent'' will expire in 3 days

You can renew it on this link

redmarkett.com/index.php?option=com_djcl...fieds&view=useritems

Best Regards,
RedMarkett.com[/color]

Hello,
I've replied in ticket.
Please do not duplicate messages related with the same issue.

Best Regards.