Send mail via SendGrid to Outlook was always failing

Question

I am a newbie in using SendGrid. I have a web application that send a mail to users after the successful registration. I am using send grid to send mails.

It works fine when I try to send Google email accounts. But when I send mails to Outlook email addresses, it always failed to deliver emails.

I checked the SendGrid 'Activity' section it shows like below.

Hello, did you manage to solve it? I have the same problem. I have configured the domain and the problem still persists. I contacted sendgrid support and they tell me that it is because we use shared IPs and because of some users we are blacklisted. — Paco Zevallos, Nov 28 '20 at 00:05
When I tried from Postman it is not receiving emails but from mobile app it is working, don't know the reason :) — Muhammad Shahzad, Sep 01 '21 at 06:59

score 3 · Answer 1 · edited May 17 '19 at 21:50

3

You might need to setup domain authentication. This link should be a good place to start: https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/

Outlook might have different firewall rules blocking incoming (potentially malicious) emails while GMail might have a different set of them.

edited May 17 '19 at 21:50

halfer

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answered May 11 '19 at 06:16

Clyde D'Souza

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i did that, its not solving anything. – julio Dec 21 '22 at 09:25

Send mail via SendGrid to Outlook was always failing

1 Answers1