Last post Jun 27, 2017 07:11 AM by Zhi Lv - MSFT
Jun 23, 2017 07:56 AM|narasappa|LINK
I am trying to send emails from SMTP mail server with AZURE VM (WINDOWS 2012 R2). I am using SMTP Host: localhost, PORT:25. When we send email all email recipients getting emails except few emails. I tried with Port 587 thinking that some ISPS block Port
25 but no luck.
SMTP log says
02:04:42 xx.xxx.xxx.21 QUIT - 0. The CC and BCC used along with that email are getting emails correctly.
What may be the issue? Why only some email receipts not getting emails. ?
Jun 27, 2017 07:11 AM|Zhi Lv - MSFT|LINK
Only some emails are stuck in mail queue
From your description, it seems that you are using queue to send emails, so I suppose perhaps the issue is related to the queue.
Can you tell me which kind of queue service you are using? Azure Storage Queue service or Service Bus Queue service?
If you are using Azure storage queue, please check the poison queue message:
If you are using Azure Service Bus queue, I suggest you check the Service Bus dead-letter queues:
Besides, if still not working, I suggest you could try to use send Email Using SendGrid with Azure: