# Connection Refused - Sendgrid Problems

**URL:** <https://forum.mautic.org/t/connection-refused-sendgrid-problems/34174>\
**Category:** Mautic 5 Install/Upgrade Support\
**Created:** [November 19, 2024, 2:40pm UTC](https://forum.mautic.org/t/connection-refused-sendgrid-problems/34174 "2024-11-19T14:40:33Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![isponse](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/isponse/32/833_2.png) [@isponse](https://forum.mautic.org/u/isponse)\
**Post date:** [November 19, 2024, 2:40pm UTC](https://forum.mautic.org/t/connection-refused-sendgrid-problems/34174/1 "2024-11-19T14:40:33Z")

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**Your software**  
My Mautic version is: v5.1.1  
My PHP version is: 8.1.30  
My Database type and version is: sql?

**Your problem**  
My problem is: I had Mautic upgrade from 3.31 to the latest version 5.1.1. I am trying to connect to my Sendgrid account, entered the SMTP info, but keep getting Connection

 ![Configuration - Mautic - mautic5.intersponse.net](https://us1.discourse-cdn.com/flex020/uploads/mautic/original/2X/d/d57e060f854d1d2596591c7e39af27be8fad2417.png)  
Refused errors

These errors are showing in the log:

Steps I have tried to fix the problem: I have used ports 25, 587  
(for unencrypted/TLS connections)  
as well as: 465

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<div class="post-metadata">

**Author:** ![isponse](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/isponse/32/833_2.png) [@isponse](https://forum.mautic.org/u/isponse)\
**Post date:** [November 19, 2024, 2:50pm UTC](https://forum.mautic.org/t/connection-refused-sendgrid-problems/34174/2 "2024-11-19T14:50:58Z")

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Updated Screen shot - these are my latest settings. Any help would be greatly appreciated.

 ![Configuration2 - Mautic - mautic5.intersponse.net](https://us1.discourse-cdn.com/flex020/uploads/mautic/original/2X/1/11a822ee53246e4454351912d56c319b7a146c30.png)

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**Author:** ![joeyk](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/joeyk/32/11164_2.png) [@joeyk](https://forum.mautic.org/u/joeyk)\
**Post date:** [November 20, 2024, 4:21pm UTC](https://forum.mautic.org/t/connection-refused-sendgrid-problems/34174/3 "2024-11-20T16:21:27Z")

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You did enter your proper credentials, right?

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<div class="post-metadata">

**Author:** ![isponse](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/isponse/32/833_2.png) [@isponse](https://forum.mautic.org/u/isponse)\
**Post date:** [November 21, 2024, 11:23am UTC](https://forum.mautic.org/t/connection-refused-sendgrid-problems/34174/4 "2024-11-21T11:23:06Z")

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Yes, I updated the Screen shot. The credentials are correct. Thank you for asking. Any ideas?