# Email notifications not grouping nicely in Mail.app

**URL:** https://meta.discourse.org/t/email-notifications-not-grouping-nicely-in-mail-app/14137
**Category:** Feature
**Created:** [March 26, 2014, 6:16am UTC](https://meta.discourse.org/t/email-notifications-not-grouping-nicely-in-mail-app/14137 "2014-03-26T06:16:00Z")
**Posts on this page:** 1
**Showing post:** 8

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### Author: ![watchmanmonitor](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/watchmanmonitor/32/430970_2.png) [@watchmanmonitor](https://meta.discourse.org/u/watchmanmonitor)
#### Post date: [April 14, 2015, 2:45am UTC](https://meta.discourse.org/t/email-notifications-not-grouping-nicely-in-mail-app/14137/8 "2015-04-14T02:45:53Z")

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Fwiw, in our Zendesk, I had to have every email from our helpdesk start with Re: before mail.app would group the thread.

TIL that this is an option in Discourse! People with older installs may want to add it to the beginning of their subject lines.

> [@(Superseded) Customize the subject format for standard emails](https://meta.discourse.org/t/superseded-customize-the-subject-format-for-standard-emails/20801/1):
>
> %{optional\_re} → Re: (applicable if the post is a Reply)

(PS there is a `space` included with the optional\_re, no need to add one before the [title])

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