The email you sent contained email headers which bear earmarks common in spam and viruses.  The specific reasons are numerous, but if a...

Your email was rejected because the IP address of the email server used to send to us did not have a PTR record, or the value of the PTR record does...

When email is rejected with this message it is due to the fact that the mail server used to send to us has been known to send UCE/UBE (spam) or...

Greylisting is a technique used to reduce viruses, spam, and other malicious traffic by attempting to determine whether or not a remote host is a...

ABI Hosting employs some adaptive technologies to blacklist hosts in realtime as they display certain characteristics.  This allows us to...

The sending email server has used the domain name of one of the domains hosted by ABI Hosting during the HELO stage of the SMTP transaction.  It...

As a general rule the ABI Hosting mail servers will not accept email if it can determined that the sending email address can not be responded...

Remote hosts which consistently attempt to send messages to email addresses that do not exist on our mail servers will be temporarily blocked. ...