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Lately I've noticed that hovering over tags opens a mini info-window with tag related data and activities including email subscription option. Great!

But instead of subscribing to just a single tag I'd rather subscribe to a combination:

tagX and tagY and tagZ ...

giving me a much better selection of questions delivered to my email inbox.

Similar to viewing questions with a particular tag. You can always click on any of the related tags and you get a subset of questions that have both tags (the first one and the second one as well) and not either.

Is this kind of email subscription possible or are there any plans on developing it?


Tag sets on StackExchange (as suggested by @Barry) don't work, because they are combined by an OR operator instead of an AND. A tag set therefore widens the filter instead of narrowing it. Just so you know this question hasn't been sufficiently answered yet.

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and possibly the AND (NOT tag2) option? – robert_x44 Feb 5 '11 at 17:26
@RD01: That would make it more complicated. but if someone would develop such a tag set combination interface it could support all three boolean operators yes. AND, OR and NOT. This would cover every possible tag combination. But I would be satisfied with a tag set that I could select whether I want them or-ed or and-ed... – Robert Koritnik Feb 5 '11 at 17:29
I would really like this as well. It would be really useful for me since I want to filter out a quite specific set of questions. The filters on StackExchange are nice, but not being able to set multiple tags that must all be set makes it a very limited filter. – Leo Feb 14 '12 at 16:42
But how far do you go? Maybe some people will start wanting AND, OR, NOT, XOR, XNOR, NOR, and NAND! (not really, just joking :P) – Doorknob Mar 26 '13 at 20:47
any possibility of this being reviewed? I could actually live with a simple solution where you run a search (eg "[html5] [video]") and have the ability to save it as a named favorite - doesn't need a big complex UI... – Offbeatmammal Aug 3 '13 at 0:57

4 Answers 4

Firstly, I emphatically support the request to allow using "and" with tags in the Stack Exchange filters. However, since that is now officially "status-declined" the next best things I've found are some Google Chrome extensions:

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@Emmett: The reviews, downloads, and general interest in these types of extensions might give some insight into the interest in the use cases that are not satisfied by stack exchange. Additionally, as both extensions provide support for an "and" operator with a pretty simple UI, it might help imagine a non-convoluted UI for the feature. – Scott Willeke Jan 25 '13 at 20:18

This isn't supported right now. The primary reason isn't technical, but because the filter creation UI is already somewhat complicated, and it's hard to imagine adding support for other operators (e.g. AND, NOT) without making it convoluted. Additionally, we think that OR satisfies the vast majority of use cases.

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I assume when you say it isn't supported right now. there is a chance that this will be supported in the near future? – JonH Nov 9 '12 at 20:55
Yea, there's a chance the entire filter UI will be revamped in the future. – Emmett Nov 9 '12 at 21:27
Would really like this.... As I said in my post, I'd really like to see people taggin questions with C# AND MongoDB for example... – alex Nov 9 '12 at 22:24
we think that OR satisfies the vast majority of use cases: based on what? On existing subscriptions? No wonder because there's no and support. I expect this to be a broadly subjective statement based on no real user testing. – Robert Koritnik Nov 12 '12 at 10:27
As a work-around, you could use Google Alerts to get updates about questions that are relevant to a search query (such as site:stackoverflow.com java javascript for questions that are relevant to Java and Javascript.) – Anderson Green Nov 13 '12 at 19:39
OR most certainly does NOT satisfy the majority of use cases - far from it. Im really interested in following C# async but when I subscribe to Asynchronous tag the majority of results are java and python - which don't interest me at all... This is REALLY short sighted of SE. – Ricibob Dec 14 '13 at 9:32
@Emmett why not just piggyback off search? Filters would be infinitely more flexible and the UI would be reduced to one box. – Todd Menier May 6 '14 at 14:23

It seems to be possible to get an RSS feed of questions that match all the given tags, e.g. http://stackoverflow.com/feeds/tag/timezone%20c%2b%2b, which only shows questions that have both the [c++] tag and the [timezone] tag.

From there, you can use your RSS reader of choice to receive updates when new questions are posted. There also seem to be services that will email you when an RSS feed is updated (e.g. https://blogtrottr.com/, although I have no experience with them).

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Create your own or use existing tag sets on http://stackexchange.com/ You can specify one or more tags for one or more sites across the stack exchange network.

You can also receive email notifications for tag sets.

See this blog post for further details

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Doesn't work as expected. Instead of combining tags with AND operator they are combined with OR which means not narrowing but widening my selection of questions. As stated in the question I want AND operator between all tags in the set. – Robert Koritnik Feb 21 '11 at 9:21

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