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Equals sign in email address. Is this some kind of spammer trick, or legitmate?

Discussion in 'E-mail Discussion' started by jols, Nov 14, 2014.

  1. jols

    jols Well-Known Member

    Mar 13, 2004
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    Lately I've been seeing more and more From addresses hitting the server looking something like this:

    The "" part was changed, but typically even though this is a FROM email address, our customer's domain is there between the = sign and the @ sign.

    My question is, do legitimate e-list systems use this kind of addressing, or could I just set up a rule to block any such email with a From address in this form, i.e. when the FROM address includes an equals sign?

    So far I've only seen spam mail with this kind of a From address.
  2. danrussell

    danrussell Well-Known Member

    Nov 5, 2014
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    Hello :),

    You should check the Header and body of the emails you receive with the "". If you think its junk, then you can block the sender email address. Else confirm with the your customer that if he has configured or subscribed to any system which sends email using his domain name.

  3. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

    Apr 11, 2011
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    Hello :)

    You risk blocking legitimate email, so it might be a better idea to implement an alternate SPAM filtering technique instead. There are several options available in "WHM Home » Service Configuration » Exim Configuration Manager" that you might find beneficial (e.g. RBL options).

    Thank you.
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