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Editorial Team
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Asked: 2026-05-27T03:03:44+00:00

I need a regex which match in all cases the associate email address of

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I need a regex which match in all cases the associate email address of the from ‘tag’.

Examples:

From: =?iso-8859-1?Q?First_Second_=28Company_Inc=29?=
    <first.second@email.com>

From: =?iso-8859-1?Q?First_Second_=28Company_Inc=29?=
 <first.second@email.com>

From: =?iso-8859-1?Q?First_Second_=28Company_Inc=29?=
 first.second@email.com

From: =?iso-8859-1?Q?First_Second_=28Company_Inc=29?=
    first.second@email.com

From: first.second@email.com

From: <first.second@email.com>

I tried different patterns (RegexOptions.Multiline) but probably took a false approach. The one listed below matches not to the second to last.

^From: ([^<>\r\n]+([ |\r\n|\r|\n][\t| ])?)?[<]?([^<>]+)[>]?$

Thanks in advance.

Kinde regards,
Danny

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1 Answer

  1. Editorial Team

    After some further try and error I got the pattern

    From:( [^<>\r\n]+[ |\r\n|\r|\n]?)?[\t| ]+[<]?([^<>]+?@[^>\r\n]+)[>]?
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