Rule with Wildcard (*) in Subject Not Working as Expected

I am trying to create a Rule to automatically filter incoming emails based on a specific subject pattern.

  • Target Subject Pattern: PO [Random Number] Midsole (e.g., “PO 123456 Midsole”)
  • Rule Condition Used: “with words in the subject”
  • Wildcard Value Entered: PO * Midsole

The Issue: The rule does not seem to trigger or catch the emails when they arrive. Am I formatting the wildcard incorrectly, or does the “with words in the subject” condition treat the asterisk (*) as a literal string rather than a wildcard operator?

Could you please advise on the correct syntax or approach to achieve this filtering in eM Client?

lunes 08 junio 2026 :: 1402hrs (UTC +0100)

Hey@fly1ngduck

I am not completely clear what you are trying to do.
Please give a screenshot of how you have set the rule.
You have to say where message is from & what is to happen

¡Buena suerte!

¡Saludos desde Sevilla la soleada en España!
¡Mis mejores deseos y mantente a salvo!

[email protected]

Hablo español, luego portugués, inglés, francés y alemán
con conocimiento de varios otros idiomas.

I think I have the same question.

In my case, I receive emails with subjects like:

  • Neu: 122 Treffer für Intel i9 14900k
  • Neu: 8 Treffer für RTX 5090
  • Neu: 57 Treffer für Samsung SSD

I would like to create a rule that matches a pattern such as:

Neu: * Treffer für *

and then moves those emails to a folder.

From my tests, it seems that the “with words in the subject” condition either treats the asterisk (*) as a literal character or matches any of the specified phrases instead of the whole pattern.

Does eM Client support wildcards or regular expressions in subject rules?

Can anyone help with this or suggest the correct way to create such a rule?

Thanks!

1 Like

Hi @skybat

I am trying to set up a specific subject filter in eM Client but am running into an issue with how the rule logic handles pattern matching.

My Goal

  • Sender: The messages could be from anyone; I only want to filter based on specific words in the subject line.
  • Target Pattern: I want to filter subjects that follow a specific string pattern, for example: "PO 001 MIDSOLE", "PO 002 MIDSOLE", etc. The number could be random from my customer.

The Problem

  1. When I attempt to use a standard wildcard rule like "PO * MIDSOLE", it does not work. It appears eM Client treats the asterisk (*) as a literal character rather than a wildcard.
  2. If I separate them into two conditions—"PO" and "MIDSOLE"—the filter works, but it is far too broad. Because it matches any subject containing both strings anywhere in the text, it incorrectly triggers on unrelated subjects like:
  • Polyester … midsole
  • Powder … sample midsole
  • Pond … color blue midsole

My Question same as @Stefanw79

I suspect that standard wildcards are not supported natively in this field.

Does eM Client support wildcards or Regular Expressions (Regex) within its subject rule criteria? If not, is there a recommended workaround to strictly match a string that starts with “PO”, followed by a variable PO number, and ends with “MIDSOLE”?

Thanks for the help!