# About VOXmail source on dmarc.io

**URL:** <https://forum.dmarcian.com/t/about-voxmail-source-on-dmarc-io/2039>\
**Category:** Community Area\
**Created:** [February 28, 2023, 11:08am UTC](https://forum.dmarcian.com/t/about-voxmail-source-on-dmarc-io/2039 "2023-02-28T11:08:31Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![bago](https://avatars.discourse-cdn.com/v4/letter/b/c89c15/32.png) [@bago](https://forum.dmarcian.com/u/bago)\
**Post date:** [February 28, 2023, 11:08am UTC](https://forum.dmarcian.com/t/about-voxmail-source-on-dmarc-io/2039/1 "2023-02-28T11:08:31Z")

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Hi, I write here because i’m not enabled yet writing to Sources or New Sources areas.

I run VOXmail and we support SPF/DKIM/DMARC on customer’s domain.

By default we use our own domains for return path and dkim signing but we let every sender to enable “domain authentication” and this change the return path to a subdomain of the From email domain and add DKIM signing for the from domain, enabling SPF+DKIM alignment and DMARC.

For accounts sending to many recipients domain authentication is mandatory: we started this path 3 years ago and since then we decreased multiple times the number of recipients a customer can write to without custom “domain authentication”. Here is the last news (in italian) about it (domain authentication is now mandatory to send to more than 10.000 recipients, but highly suggested over 2.500):

> **[L'autenticazione di dominio diventa obbligatoria | VOXmail](https://www.voxmail.it/blog/2022/09/05/lautenticazione-di-dominio-diventa-obbligatoria)**
>
> Da diversi anni nel mondo dell'invio di email si è imposto il sistema dell'autenticazione di dominio per autorizzare gli invii effettuati per conto terzi. Questo tecnicamente consiste in una serie di direttive da inserire nella configurazione DNS del...

In order to enable domain authentication we have a custom tool that ask the user to add some CNAME and add/change the SPF (one for the return path, usually “e.#domain” and 2 CNAMEs for the dkim records and also ask to add a new SPF or to change the SPF to add our own include + optionally a \_dmarc CNAME if the user does not already have one) and guide the user through the changes and validate them before we start to send “authenticated emails”.

Hope that [dmarc.io - VOXmail](https://dmarc.io/source/voxmail/) can be updated (and maybe this post moved to the Sources area).

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**Author:** ![Asher](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.dmarcian.com/asher/32/104_2.png) [@Asher](https://forum.dmarcian.com/u/Asher)\
**Post date:** [March 3, 2023, 3:48pm UTC](https://forum.dmarcian.com/t/about-voxmail-source-on-dmarc-io/2039/2 "2023-03-03T15:48:18Z")

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Hi Stefano,

Thank you for writing in regarding VOXmail. We will review the information you provided and update the source capabilities once our investigation is complete. Thank you for taking the time to post on our forums!