Email provider blocked incorrectly

A very good day to you,

I’m using a “Contact From 7” to send an email for users to register to events. One of our users has an emailadres in the domain of “@concepts.nl” and this gives and error. If I disable Akismet it does send the email correctly. I found this old topic with a simillar problem: https://wordpress.org/support/topic/content-form-author-domain-problem/

If this can be fixed it would be greatly appreciated.

• This topic was modified 1 year, 2 months ago by tobiasb92.

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