# Can the same mail.mycompany.com DNS be used to multipe accounts?

**URL:** <https://devforum.okta.com/t/can-the-same-mail-mycompany-com-dns-be-used-to-multipe-accounts/1508>\
**Category:** Questions\
**Created:** [March 27, 2018, 8:14pm UTC](https://devforum.okta.com/t/can-the-same-mail-mycompany-com-dns-be-used-to-multipe-accounts/1508 "2018-03-27T20:14:42Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![lee\_md](https://avatars.discourse-cdn.com/v4/letter/l/ccd318/32.png) [@lee\_md](https://devforum.okta.com/u/lee_md)\
**Post date:** [March 27, 2018, 8:14pm UTC](https://devforum.okta.com/t/can-the-same-mail-mycompany-com-dns-be-used-to-multipe-accounts/1508/1 "2018-03-27T20:14:42Z")

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We have a preview account for testing and enterprise account. Can we use the same sender email . address and [mail.mycompany.com](http://mail.mycompany.com) DNS for both?

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**Author:** ![Govner](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/govner/32/1099_2.png) [@Govner](https://devforum.okta.com/u/Govner)\
**Post date:** [June 5, 2019, 8:54am UTC](https://devforum.okta.com/t/can-the-same-mail-mycompany-com-dns-be-used-to-multipe-accounts/1508/2 "2019-06-05T08:54:26Z")

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I believe it is fine because the required DNS records can be defined multiple times per domain:

[https://help.okta.com/en/prod/Content/Topics/Settings/Settings\_Configure\_A\_Custom\_Email\_Domain.htm](https://help.okta.com/en/prod/Content/Topics/Settings/Settings_Configure_A_Custom_Email_Domain.htm)

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**Author:** ![dragos](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/dragos/32/1313_2.png) [@dragos](https://devforum.okta.com/u/dragos)\
**Post date:** [June 7, 2019, 8:59am UTC](https://devforum.okta.com/t/can-the-same-mail-mycompany-com-dns-be-used-to-multipe-accounts/1508/3 "2019-06-07T08:59:10Z")

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Hi @lee_md

No, this can not be done, because, once the first mail domain is registered, Okta will not be able to register the second with the same details inside the SMTP server used.

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**Author:** ![system](https://global.discourse-cdn.com/oktadev/original/1X/589c4c5f80de422d01f47cee7185a7fb8227835c.png) [@system](https://devforum.okta.com/u/system)\
**Post date:** [January 23, 2024, 7:12pm UTC](https://devforum.okta.com/t/can-the-same-mail-mycompany-com-dns-be-used-to-multipe-accounts/1508/4 "2024-01-23T19:12:31Z")

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