Is it possible to automatically apply a label if another email with same sender has label

Question

In Gmail, is it possible to create a filter to automatically applies a label to an email if another email with the same sender already has this label.

For instance, sssuming I have an email from johndoe@gmail.com with label MyLabelA, can I create a rule that will apply the same label to another email from johndoe@gmail.com? Note that the label MyLabelA will be applied to hundreds of emails with multiple recipients and I can't use johndoe@gmail.com directly to define the filter.

I have seen this question but I am wondering if there is a way of achieving this without writing a script.

Answer 1

From the question:

I have seen this question but I am wondering if there is a way of achieving this without writing a script.

Gmail filters are not able to assign a label based on information of other email messages, so no, it's not possible to assign a label using built-in features.

Reference

• Create rules to filter your emails

Answer 2

You can check on Create rules to filter your emails:

1. Open Gmail.
2. In the search box at the top, click Show search options.
3. Enter your search criteria. If you want to check that your search worked correctly, see what emails show up by clicking Search.
4. At the bottom of the search window, click Create filter.
5. Choose what you’d like the filter to do.
6. Click Create filter.

You can also create a filter based on an email:

1. Open Gmail.
2. Check the checkbox next to the email you want.
3. Click More.
4. Click Filter messages like these.
5. Enter your filter criteria.
6. Click Create filter.