Public cloud servers are great for many things; however, sending email is not one of them.

Why Cloud Servers are Bad for Sending Email

The IP address spaces used by the major public cloud vendors (i.e. Amazon, Rackspace, etc.) for their cloud servers are well known and are generally black- or gray-listed by anti-spam systems. Additionally, many of the IP addresses in use by these systems are already “polluted” from previous abusive use by spammers.  When you set up a new cloud server, you could be easily assigned a “bad IP”.  Even if you do not inherit a bad IP reputation from the previous user(s) of your new IP, your server is still in the general set of IP addresses of the cloud and thus considered a possible spam source.

Read the rest of this post »

In many ways, the Internet is still like the Wild Wild West. Email messages sent to you or from you can and do “go missing” for no apparent reason.  This can happen no matter what email provider you use. So, what happened to these “AWOL” messages?  How can you diagnose and solve the problem?

Read the rest of this post »

We are observing growing numbers of users trying to send legitimate email messages only to be blocked because the IP address that they are getting from their Internet Service Provider (ISP) for their personal computer is on some major blacklist, like SpamHaus.  Comcast, for example, has been the focus of many of these issues lately. This message blocking often happens even if a user is sending outbound email through a legitimate email provider like LuxSci.

Users invariably ask:

• Why is the mail blocked even though I am sending through LuxSci or some other email provider and not directly from my ISP?
• What can I do about it?

Fortunately, there is a good reason why the blocks occur and an easy solution to them … with LuxSci’s anonymous SMTP service.

Read the rest of this post »