I have been asked this question several times so I thought it would be beneficial to post some information about the subject. To avoid making your ‘legitimate’ email being identified as Spam, pay attention to the following recommendations:

  • avoid sending email to a large number of recipients
  • avoid attaching any file in mass mailings
  • avoid using highly formatted text especially with colored headings.
  • do not use background graphics or logos.
  • avoid using ‘sales patter’ e.g. Hot Deal, Special Offer.
  • avoid using ‘rude language’

University websites often provide useful information on the subject.

Specifically, people ask how many recipients to include with mass mailings, as spam filters could use this as a criteria. Unfortunately I have not found data on this, so I would love to hear your recommendations. What else do you do to avoid being marked as SPAM?

Related Resources
Most of the 642-825 and 642-845 students are more interested in doing 70-646 and EX0-101 than the basic 642-552.

4 Responses to “How To Stop Your Outgoing Email Being Marked As Spam”

  1. Vern Jensen Says:

    Oh, the irony of a blog article about spam, and the only two comments on the article are themselves spam.

  2. Thomas Bowcut Says:

    LOL, very true. Thanks for pointing this out the spam comments have been deleted 🙂

  3. Steven James Says:

    Good stuff. 🙂

  4. Thi công qu?ng cáo Says:

    I am using microsoft outlook 2010 and many emails i sent to my customers were marked as spam and come to spam box of my customer’s emails. When i called my customers to inform them that i sent them emails already but they said that they did not get my email. Please advise me how to setup it in outlook, thanks

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