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Regular expressions in the routing address #480

sperlic opened this issue Feb 1, 2018 · 2 comments

Regular expressions in the routing address #480

sperlic opened this issue Feb 1, 2018 · 2 comments


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@sperlic sperlic commented Feb 1, 2018

Hi guys,

We have a situation where domen.tld is used for regular email messages and for transaction messages across the route notifications-{INSTANCE_ID}@domain.tld[1]. Is it possible to use a regular expression in the ruting address to route only the addresses that contain notifications -.*@domain.tld? Wildcard address *@domain.tld makes us a redirection loop when the transaction message is sent to regular user user@domain.tld back through the Postal.

[1] The server that performs the separation and routing (via Postfix) for the domain.tld is located on another machine in relation to Postal which currently has a wildcard route.

Let me know if you need more informations about this scenario.

Thank you for the great product!


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@willpower232 willpower232 commented Feb 3, 2018

I don't believe such a thing is currently possible, there is only the wildcard redirect *@domain.tld.

We don't really use routes so not sure exactly what changes are needed but I don't believe it would be complicated to add.

If you add that feature yourself, do send a pull request.


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@Csardelacal Csardelacal commented Jan 24, 2020

I know this is a bit older thread.

But I found out that this is actually possible in vanilla Postal and made a blog post about it)

You may not be able to use notifications-*@domain but you can create a route for notifications@domain and then send emails to notifications+id@domain and it will work just fine.

Postal respects the fact that the + symbol in email addresses is akin to the # character for URL fragments.

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