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ExMSW4319's avatar
ExMSW4319
Iron Contributor
Feb 15, 2022

Matching the Received header

I'm looking to match a Received header and am running into the usual problems achieving a match. In the case of the Received header, there are six examples in a typical single message and I am wonder...
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Victor_Ivanidze's avatar
Victor_Ivanidze
Bronze Contributor
Feb 15, 2022
Hi,
could you please explain what exactly you are trying to achieve?
  • ExMSW4319's avatar
    ExMSW4319
    Iron Contributor
    Feb 15, 2022

    Victor_Ivanidze 

     

    Well, I was hoping to discover if the more responsible implementers of a certain mail API did not leave the word "unknown" in their headers:

     

    Received: from {12-digit numeral} named unknown by {guess who} with HTTPREST; {day, date, time, zone}

     

    I'm looking to match "named unknown by {guess who} with" as I don't see the need to burden the rule with expressions to match the numeral and the time stamp at the end. 

     

    {guess who} is of course a simple domain name with two period characters. It's simple constant text so there is no need for a regex pattern to match that.

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