# How can I bulk remap/update user email addresses? **URL:** \ **Category:** Product Support\ **Created:** [28 Janeiro , 2017 15:56 UTC](https://meta.discourse.org/t/how-can-i-bulk-remap-update-user-email-addresses/56519 "2017-01-28T15:56:29Z")\ **Posts on this page:** 1\ **Showing post:** 6
**Author:** ![techAPJ](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/techapj/32/342990_2.png) [@techAPJ](https://meta.discourse.org/u/techAPJ)\ **Post date:** [29 Janeiro , 2017 06:44 UTC](https://meta.discourse.org/t/how-can-i-bulk-remap-update-user-email-addresses/56519/6 "2017-01-29T06:44:35Z")
> [@harveywun](#): > > The problem is I tried to change my domain from [forum.mysite.co](http://forum.mysite.co) to forum.mysite.com.au (all staff members are on user@mysite.com.au email address). > [@harveywun](#): > > since we were trying to migrate from [site.co](http://site.co) to site.com.au. It ‘replaced’ the string pattern in our login emails. Can you please let me know the _exact command_ you ran to remap `forum.mysite.co` to `forum.mysite.com.au` ? I can easily create a new rake task which will batch remap/update user email address from `user@mysite.com.aum.au` to `user@mysite.com.au` but first I want to know the root cause of how this happened, to prevent it from happening in future. --- _[View the full topic](https://meta.discourse.org/t/how-can-i-bulk-remap-update-user-email-addresses/56519)._