# Mautic 'send from' address only valid if on installation domain?

**URL:** <https://forum.mautic.org/t/mautic-send-from-address-only-valid-if-on-installation-domain/14279>\
**Category:** Product Support\
**Created:** [May 11, 2020, 3:59pm UTC](https://forum.mautic.org/t/mautic-send-from-address-only-valid-if-on-installation-domain/14279 "2020-05-11T15:59:04Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![vega4](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/vega4/32/7308_2.png) [@vega4](https://forum.mautic.org/u/vega4)\
**Post date:** [June 20, 2022, 9:11am UTC](https://forum.mautic.org/t/mautic-send-from-address-only-valid-if-on-installation-domain/14279/16 "2022-06-20T09:11:03Z")

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OK; I’ve dived deep into this and I can confirm with 100% certainty that external e-mail addresses i.e. ones not at @mauticinstallation.com, when assigned to e-mails, are IGNORED and mautic uses the DEFAULT address instead.

**Now, that’s a Big Bummer.**

Also, there is NO WAY to make Mautic not use the ‘append +\_bounceXYZ’ into the source e-mail making any responses fail to be delivered 100% if your SMTP server does not support the ‘+’ semantics.

That should be in red all over the place.

Same problem is visible here:

> [@URLs in segment email are not using the site\_url](https://forum.mautic.org/t/urls-in-segment-email-are-not-using-the-site-url/17457/2):
>
> Hello Jan! This is what happened when Mautic sends out a real send, all emails will be replaced with the tracking domain (mautic url) for tracking purposes. This is how Mautic knows someone clicked (+a tracking img will also track your opens containing the same url) However during simple testing this doesnt happen. You can mitigate this issue by using the same trick you used for your website tracking. Joey

Currently, there is no way to:

1. send emails from external domains
2. override Mautic messing with the source e-mail address.  
Yes, in some cases, especially when sending private e-mails we do not care about tracking at all.

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