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My emails are being quarantined by Office 365 and I need help
I am having really bad issue. We use Google Business for email and Sendgrid SMTP service via our ERP Odoo to send transactional emails. But since last week all of the customers and supplier...
It looks like it really was a DMARC issue.
DMARC takes a couple of days to kick in. On Friday i did some more tests that did not go through and all of a sudden all of the tests went through over the weekend which coincided with the DMARC being 100% authenticated.
So lesson learned, make sure you have a SPF, DKIM, and DMARC on your DNS.
Thank you for chiming in !
Thank you guys for chiming in, really appreciated. This is really nightmarish.
I just added DMARC to my DNS records but that did not change anything.
Regarding Sendgrid, I used to have 2 dedicated IP. Ihad a zoom call with them to go over my account and optimize everything. One of the thing we did is to delete one of the IP and keep the best one. The reason being is that I only send 15k transactional emails per month and they told that it is too little for two IP. So that is optimized as well. I have this IP since December 2020 and never had any issue before last week.
My IT company who is a Microsoft partner opened a ticket with Microsoft directly to see what could cause this...
The PDF attachment that we send are the same exact ones since 2020. However I will have the links in them removed to see if that changes anything for deliverability as if i send the email without any signature and just the pdf converted in jpeg it goes through.
I will keep you guys posted to ensure we get to the bottom of this for the next person that would have the same type of issue.
I just added DMARC to my DNS records but that did not change anything.
Regarding Sendgrid, I used to have 2 dedicated IP. Ihad a zoom call with them to go over my account and optimize everything. One of the thing we did is to delete one of the IP and keep the best one. The reason being is that I only send 15k transactional emails per month and they told that it is too little for two IP. So that is optimized as well. I have this IP since December 2020 and never had any issue before last week.
My IT company who is a Microsoft partner opened a ticket with Microsoft directly to see what could cause this...
The PDF attachment that we send are the same exact ones since 2020. However I will have the links in them removed to see if that changes anything for deliverability as if i send the email without any signature and just the pdf converted in jpeg it goes through.
I will keep you guys posted to ensure we get to the bottom of this for the next person that would have the same type of issue.
it looks like DMARC is slowly propagating as I am receiving emails with the DMARC results slowly from different domains such as yahoo, aol, and att
Hopefully that was the issue and it will take another 24-48h to solve
Hopefully that was the issue and it will take another 24-48h to solve