# Transactional emails sent with API taking a day to send **URL:** \ **Category:** Transactional\ **Created:** [Juin 26, 2024, 10:43 UTC](https://community.brevo.com/t/transactional-emails-sent-with-api-taking-a-day-to-send/1682 "2024-06-26T10:43:35Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![deadl0ck](https://dub1.discourse-cdn.com/flex013/user_avatar/community.brevo.com/deadl0ck/32/657_2.png) [@deadl0ck](https://community.brevo.com/u/deadl0ck)\ **Post date:** [Juin 26, 2024, 10:43 UTC](https://community.brevo.com/t/transactional-emails-sent-with-api-taking-a-day-to-send/1682/1 "2024-06-26T10:43:35Z")
Hi, I’m testing the free tier to see what it’s like to send emails with the API (hoping to suggest a. subscription to a client when done if all goes well) and I sent emails yesterday and they all looked like they sent but the were never received. Today they started arriving to my inbox, and I can see the ones that had errors in the logs also now. I’m using python, and the code is essentially this that does the sending: ```auto send_smtp_email = sib_api_v3_sdk.SendSmtpEmail(to=to, html_content=html_content, sender=sender, subject=subject) api_response = api_instance.send_transac_email(send_smtp_email) ``` Should it take a day for them to send or is there a setting I am missing somewhere? Thanks! ---
**Author:** ![ahudavert](https://dub1.discourse-cdn.com/flex013/user_avatar/community.brevo.com/ahudavert/32/14_2.png) [@ahudavert](https://community.brevo.com/u/ahudavert)\ **Post date:** [Juin 27, 2024, 7:41 UTC](https://community.brevo.com/t/transactional-emails-sent-with-api-taking-a-day-to-send/1682/2 "2024-06-27T07:41:19Z")
Hi @deadl0ck , thanks for posting on this community. Indeed, that’s weird, there should not be a delay like this one. Maybe @Mauricio you know more about this? ---
**Author:** ![Mauricio](https://dub1.discourse-cdn.com/flex013/user_avatar/community.brevo.com/mauricio/32/56_2.png) [@Mauricio](https://community.brevo.com/u/Mauricio)\ **Post date:** [Juin 27, 2024, 7:46 UTC](https://community.brevo.com/t/transactional-emails-sent-with-api-taking-a-day-to-send/1682/3 "2024-06-27T07:46:21Z")
Hi @deadl0ck , where you using an authenticated/valid domain when you got the errors? ---
**Author:** ![deadl0ck](https://dub1.discourse-cdn.com/flex013/user_avatar/community.brevo.com/deadl0ck/32/657_2.png) [@deadl0ck](https://community.brevo.com/u/deadl0ck)\ **Post date:** [Juin 27, 2024, 11:42 UTC](https://community.brevo.com/t/transactional-emails-sent-with-api-taking-a-day-to-send/1682/4 "2024-06-27T11:42:46Z")
Hi @Mauricio - yes, it’s validated: ![image](https://europe1.discourse-cdn.com/flex013/uploads/brevo/original/1X/be8d068ce6f9f3cec66845b9013eb9c6f28f6229.png) ---
**Author:** ![deadl0ck](https://dub1.discourse-cdn.com/flex013/user_avatar/community.brevo.com/deadl0ck/32/657_2.png) [@deadl0ck](https://community.brevo.com/u/deadl0ck)\ **Post date:** [Juin 27, 2024, 11:46 UTC](https://community.brevo.com/t/transactional-emails-sent-with-api-taking-a-day-to-send/1682/5 "2024-06-27T11:46:59Z")
I tried it again just now and it’s working in that I get the email almost instantly. Weird… ---
**Author:** ![Mauricio](https://dub1.discourse-cdn.com/flex013/user_avatar/community.brevo.com/mauricio/32/56_2.png) [@Mauricio](https://community.brevo.com/u/Mauricio)\ **Post date:** [Juin 28, 2024, 3:32 UTC](https://community.brevo.com/t/transactional-emails-sent-with-api-taking-a-day-to-send/1682/6 "2024-06-28T15:32:23Z")
I’m glad it’s working now. Did you authenticated your domain from the very beginning before you started sending? ---
**Author:** ![deadl0ck](https://dub1.discourse-cdn.com/flex013/user_avatar/community.brevo.com/deadl0ck/32/657_2.png) [@deadl0ck](https://community.brevo.com/u/deadl0ck)\ **Post date:** [Juin 28, 2024, 6:57 UTC](https://community.brevo.com/t/transactional-emails-sent-with-api-taking-a-day-to-send/1682/7 "2024-06-28T18:57:22Z")
Yep - I was fully authenticated before sending anything