Delay between user registration and sending of code via email
We use Zitadel Cloud (PRO). We allow user registration via email and password. For most users, this works fine: they enter their info, receive a validation code in their email within 30 seconds, then enter the code and continue to our web application.
But for some chunk of users, the email takes at least 5 or more minutes to arrive in their inboxes.
I thought maybe this was a deliverability issue, but two pieces of evidence indicate that it might be on Zitadel's end:
1. Our SMTP provider shows timestamps for when an email was queued in its system and when the recipient opened it. Even for users who encountered a delay, those two timestamps were still in the same minute.
2. In Zitadel, for users that encountered a delay, I see a difference in the "Last Changes" section of that user's page. e.g.,
Any guidance?
But for some chunk of users, the email takes at least 5 or more minutes to arrive in their inboxes.
I thought maybe this was a deliverability issue, but two pieces of evidence indicate that it might be on Zitadel's end:
1. Our SMTP provider shows timestamps for when an email was queued in its system and when the recipient opened it. Even for users who encountered a delay, those two timestamps were still in the same minute.
2. In Zitadel, for users that encountered a delay, I see a difference in the "Last Changes" section of that user's page. e.g.,
Initialization code sent
16:23
Initialization code generated
16:18
Person registered themself
16:18
Any guidance?
