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.

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LuxSci now provides alternate ports for POP and IMAP connections to help our users with difficulty connecting to our servers due to firewalls blocking the usual ports.

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