Sendgrid Header Issue

[Bot]

Hello,

After setting up Sendgrid using the default plugin, emails work fine except for account verification and password reset links.

When users try to click on the link, they are redirected to my website and encounter the issue "Site is not found." The link sent has a weird subdomain: http://url8906.example.com/ls/click

The message in Error Logs: Header can not be one of the reserved keys. Refer to the documentation link.

Send Grid's documentation says:

Quote

Some header keys are reserved. You may not include any of the following reserved keys: x-sg-id, x-sg-eid, received, dkim-signature, Content-Type, Content-Transfer-Encoding, To, From, Subject, Reply-To, CC, BCC.

The issue does not occur when using SMTP email or PHP self-hosted services. 

Any help would be appreciated!

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