# Problem Sending Activation Email

**URL:** <https://meta.discourse.org/t/problem-sending-activation-email/136997>\
**Category:** Self-hosting\
**Created:** [December 24, 2019, 9:14pm UTC](https://meta.discourse.org/t/problem-sending-activation-email/136997 "2019-12-24T21:14:44Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![nparab](https://avatars.discourse-cdn.com/v4/letter/n/a88e57/32.png) [@nparab](https://meta.discourse.org/u/nparab)\
**Post date:** [December 25, 2019, 12:16pm UTC](https://meta.discourse.org/t/problem-sending-activation-email/136997/2 "2019-12-25T12:16:11Z")

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Update: I got the activation email working using the port 587 and using the following value in app.yaml file:

DISCOURSE\_SMTP\_ENABLE\_START\_TLS: false

Once I logged into the admin interface I could see the following Sidekiq errors (from before?):

Jobs::HandledExceptionWrapper: Wrapped OpenSSL::SSL::SSLError: hostname “[mail.mydomain.com](http://mail.mydomain.com)” does not match the server certificate

Now, I understand that this error went away because I set the DISCOURSE\_SMTP\_ENABLE\_START\_TLS to false, but is this the right way to do things?

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