Automatic Email Forwarding

Levin, Charlene 1

I have my incoming Office 365 Outlook emails set up at my main company account (name@smtpmaincompanyaccount) to automatically forward to my client Outlook email address (name@smtpclientaccount). My main Outlook account is showing that the messages are being forwarded to the client email address, however, they are not being received at the client email address. Neither my company IT support nor my client company IT support is showing any issues with set up. No accounts are being blocked by either companies. Do you know why the emails are not being received at the client email address?

3 answers

Andy David - MVP 147.9K Reputation points MVP

2020-08-19T18:50:55.523+00:00

It's probably failing SPF/DMARC because of the forwarding.
Does it show delivered from your IT company to the client email address in message tracking? ( Have you checked that or asked IT to check that?)
If so, then you will need to look in the recipient's quarantine or junk mail folders.
If you dont see it there, then the IT company on the recipients side will need to trace it if the sending company logs show it was delivered to them.
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Jade Liang-MSFT 9,976 Reputation points Microsoft Employee

2020-08-20T10:26:57.893+00:00

Can you send automatic forwarding messages to others or the recipient receive other normally forwarding messages succesfully?

I have my incoming Office 365 Outlook emails set up at my main company account to automatically forward to my client Outlook email address.

Are you using Outlook desktop?
And how did you set the "Automatic Email Forwarding"? Via Outlook desktop rule or mail server settings?

However, they are not being received at the client email address.

To further confirm your issue, it is suggested for client to log in to his web mail and try Outlook search to check if he has already received the automatic forwarding email.
As I know, on outlook client side, we just could use rules to delete or do other actions for received messages, which may cause this issue, please ask your client to check his rules in Outlook(Home>Rules>Manage rules and alerts).

If it's also invalid , I'm afraid this issue may be related to your recipient mail server settings. According to my research, mail flows in the server like below would also cause this issue, please try to ask your client and his administrators to check it .

If the response is helpful, please click "Accept Answer" and upvote it.
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Andy David - MVP 147.9K Reputation points MVP

2020-08-20T11:12:05.077+00:00

It wouldnt show as auto-forwarded on the recipient side, so that wouldnt apply.

Jade Liang-MSFT 9,976 Reputation points Microsoft Employee

2020-08-25T00:41:31+00:00

Does this issue have any upgrades?
If it has been resolved, please click "Accept as answer" to mark useful post or share your solution, your action would benefit others who have similar issues.
If you have any questions or need further assistance, please feel free to post back. Thanks!

Jade Liang-MSFT 9,976 Reputation points Microsoft Employee

2020-08-28T00:40:22.56+00:00

Has your issue been solved after so long?
If not, please provide me with more information about it for further analysis.
Thanks!
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Levin, Chuck (REI-CON) 1 Reputation point

2020-08-31T19:51:09.753+00:00

I am forwarding your responses to both of my IT reps (my parent company and my client company) to see if they can investigate per your suggestions.
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Jade Liang-MSFT 9,976 Reputation points Microsoft Employee

2020-09-01T09:45:45.393+00:00

Thanks for your reply.
Any update, please feel free to post back.

Levin, Chuck (REI-CON) 1 Reputation point

2020-09-22T16:02:35.943+00:00

My issue has not yet been resolved. The parent company is showing that the messages are being forwarded. The client company (recipient) is not receiving the messages. There are no client company (recipient) blocks set up on any incoming messages from my parent company. We have checked the quarantine and junk mail folders The messages are not there.

The auto-forwarding was originally set up using Office 365. It had been working for several years with no issues for a group of us and then in May, we started having issues with the messages not being received at our client company inboxes. Are there any known Microsoft upgrades that would have caused this issue?

Andy David - MVP 147.9K Reputation points MVP

2020-09-22T16:10:00.237+00:00

If the parent company has logs showing the messages were sent and received by client company, then its on the client company ( the recipient) and they are dropping or quarantining the message.

Is this the case? Can the parent company provide logs showing the client company received the forwarded messages?

Levin, Chuck (REI-CON) 1 Reputation point

2020-09-28T13:57:35.74+00:00

The parent company tracking log is showing that the messages are "delivered". The recipient company tracking is not showing anything found, no trace entering their exchange system.

Some messages from the parent company set up to forward to others at my recipient company (which are set up the same as mine), are being received by them so this confirms the email sender (parent company) is not being blocked by the recipient company. As I stated before, a large group of us are set up with the forwarding from the parent company to the recipient company. All were working correctly for several years until @ May of this year. Now some are still receiving the messages from the parent company that are being forwarded, but the majority are not.

Andy David - MVP 147.9K Reputation points MVP

2020-09-28T15:01:06.88+00:00

The parent company will need to prove it was actually delivered then. The SMTP protocol logs will have to be searched. If they show the recipient company received these, then its on the recipient company to figure out what happened to the messages. You are kinda stuck until that happens.

The logs showing the actual SMTP conversation between the parent and recipient company are what need to be looked at

Levin, Chuck (REI-CON) 1 Reputation point

2020-09-28T19:26:55.2+00:00

Okay I will see if this is what they are doing. Thanks.

Andy David - MVP 147.9K Reputation points MVP

2020-09-28T19:35:24.203+00:00

and if this is Microsoft 365 that is sending the emails, then have the parent company get the IP address of the recipients server that it shows it was deliveredto.
Then take that to the recipient company admins and show them and say:
"Here is the IP of the server that accepted this forwarded message. If this is your server, then start checking from there!"
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Automatic Email Forwarding

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