# Client does not have permissions to send as this sender " (code: 550) (send)”

**URL:** https://forum.mautic.org/t/client-does-not-have-permissions-to-send-as-this-sender-code-550-send/7825
**Category:** Product Support
**Created:** [March 7, 2017, 8:56am UTC](https://forum.mautic.org/t/client-does-not-have-permissions-to-send-as-this-sender-code-550-send/7825 "2017-03-07T08:56:04Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![tectonic](https://avatars.discourse-cdn.com/v4/letter/t/6a8cbe/32.png) [@tectonic](https://forum.mautic.org/u/tectonic)
#### Post date: [March 7, 2017, 8:56am UTC](https://forum.mautic.org/t/client-does-not-have-permissions-to-send-as-this-sender-code-550-send/7825/1 "2017-03-07T08:56:04Z")

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Hi,  
  
  
  
Am am getting this error "Client does not have permissions to send as this sender " (code: 550) (send)” when using our Microsoft Exchange SMTP server.  
  
  
  
Does anyone else have this problem. I can connect successfully and can send a test mail but not a mail to a contact.  
  
  
  
Thanks,  
  
Chris

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### Author: ![tectonic](https://avatars.discourse-cdn.com/v4/letter/t/6a8cbe/32.png) [@tectonic](https://forum.mautic.org/u/tectonic)
#### Post date: [March 7, 2017, 8:56am UTC](https://forum.mautic.org/t/client-does-not-have-permissions-to-send-as-this-sender-code-550-send/7825/2 "2017-03-07T08:56:04Z")

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Hi,

Am am getting this error "Client does not have permissions to send as this sender " (code: 550) (send)” when using our Microsoft Exchange SMTP server.

Does anyone else have this problem. I can connect successfully and can send a test mail but not a mail to a contact.

Thanks,  
Chris

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### Author: ![mausm](https://avatars.discourse-cdn.com/v4/letter/m/90db22/32.png) [@mausm](https://forum.mautic.org/u/mausm)
#### Post date: [March 9, 2017, 8:38pm UTC](https://forum.mautic.org/t/client-does-not-have-permissions-to-send-as-this-sender-code-550-send/7825/3 "2017-03-09T20:38:30Z")

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Test your SPF settings, is the server you have Mautic installed on, part of the SPF whitelist in the Microsoft Exchange server?

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### Author: ![ninjoan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/ninjoan/32/1005_2.png) [@ninjoan](https://forum.mautic.org/u/ninjoan)
#### Post date: [March 9, 2017, 11:06pm UTC](https://forum.mautic.org/t/client-does-not-have-permissions-to-send-as-this-sender-code-550-send/7825/4 "2017-03-09T23:06:50Z")

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This is a problem relate to Microsoft Exchange no Mautic contact your Microsoft Exchange Administrator