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Posts Tagged ‘blacklist’

Are Cloud Servers Bad for Sending Email?

Thursday, April 12th, 2018

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 additionally “polluted” from previous abusive use by spammers.  When you set up a new cloud server, you could be easily assigned a “tarnished IP.”  Even if you do not inherit an exceptionally bad IP reputation from the previous user(s) of your new IP, your server will still be in the uncertain neighborhood of “public cloud IP addresses.”  This is the “wrong side of the tracks” and thus considered a possible spam source.

Cloud servers are bad for sending email

 

We have investigated several services that claim to offer “Cloud-Based Outbound Email” and have found that many use cloud servers for things like scanning email messages for spam and viruses, but use non-public cloud servers for the actual sending of email.  This is obviously not true for all companies, but it points to the fact that if everyone might be affected, the solution is to NOT send email directly from your public cloud.  There are, however, straight-forward solutions to getting email originating from such servers delivered.

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Where’s the Email? Diagnosing and Resolving Issues with Missing Email

Monday, December 1st, 2014

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?

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Having Problems Sending Email Because Your ISP is Blacklisted?

Wednesday, October 9th, 2013

It happens over and over — users trying to send legitimate email messages are blocked from sending because the IP address that they are getting from their Internet Service Provider (ISP) for their personal computer (or small office) is on some major blacklist, like SpamHaus.  Comcast, for example, has been the focus of many of these issues. 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 … anonymous SMTP service to hide your IP address.

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Why you should separate your business and your marketing email sending

Thursday, February 21st, 2013

A typical organization sends at least two very distinct classes of email messages: business email and marketing email.

Business email consists of all of the individual, personal messages sent by sales, support, billing and other departments to specific people.  These messages are generally more time sensitive; it is very important that the recipients actually receive them; these messages should not be filtered by any kind of spam filtering software, if possible.

Marketing email messages are similar messages sent in bulk to many people at once.  Examples of these include newsletters, notifications of blog updates, promotions and ads, status notices, etc.

In order for your business email to be as reliable as possible, the marketing email should be sent separately, through separate servers and maybe even on a separate domain name.  Here we will look at why.

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