All Questions
3
questions
0
votes
1
answer
554
views
SPF spf.protection.outlook.com is invalid for messages within tenant
When sending mails through our Exchange 365 service those mails get through successfully, but if we look at the mail headers we see that where the sender and recipient are in our tenant the mail's ...
- 1,344
1
vote
1
answer
2k
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DMARC and RFC2298 compliant MDNs with a null MailFrom... Can it work?
This is an issue we're seeing with Exchange Online but it would be an issue with most hosted email I suspect. When Office 365 / Exchange Online sends an automatic reply (Out of Office for example) it ...
- 123
5
votes
2
answers
17k
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how to configuration dkim on exchange email server
Mails sent from our internal email server to public servers such as Gmail, Yahoo and all other external organizations are delivering to spam. We currently use exchange server, in order to tackle above ...
- 51