IP blocking

Question

IP blocking

Christel Desmet 0

Microsoft blocks my IP address when sending from my businessaccount

<Email removed for privacy>

According to my internetprovider microsoft thinks that my mails are spam and therefore blocks my IP address. They suggested finding out why that happens and to ask to unblock my IP address

Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2023-03-21T07:04:20.71+00:00

Hi @ Christel Desmet ，

Just checking in to see how things are going on with this thread.

If the reply was helpful, you can click the "Accept Answer" button under this post so that other's with similar question can benefit from this thread as well.

If you still have further questions or concerns, feel free to post back.
Reza-Ameri 17,336 Reputation points Volunteer Moderator

2023-03-21T21:33:17.9433333+00:00

Firstly, this is a public forum and do not share any information like emails or personal details.

In this case, it is better to contact Microsoft Support and check with them.
Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2023-04-07T02:01:46.1633333+00:00

Hi @ Christel Desmet ，

I'm here to confirm with you if your issue has been resolved.

If the problem is successfully solved, you can share your solution or accept the helpful reply as answer, this will make answer searching in the forum easier and be beneficial to other community members as well.
Christel Desmet 0 Reputation points

2023-04-29T18:15:32.0333333+00:00

Hi, still not solved, do not find a decent answer nor solution. The message I keep receiving is :

*"The task 'Synchronizing the subscribed folders of ******@xxxxxxxxxxxxxxxxxx.eu.' reported error (0x800CCC0E) : 'Outlook cannot sync subscribed folders from *****@xxxxxxxxxxxxxxxxxxx.eu. Error: Cannot connect to the server. If you continue to receive this message, please contact your server administrator or Internet Service Provider (ISP)."

Now and then it helps activating a VPN, but most of the time it doesn't

1 answer

Your answer

Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2023-03-21T07:04:20.71+00:00

Hi @ Christel Desmet ，

Just checking in to see how things are going on with this thread.

If the reply was helpful, you can click the "Accept Answer" button under this post so that other's with similar question can benefit from this thread as well.

If you still have further questions or concerns, feel free to post back.
Reza-Ameri 17,336 Reputation points Volunteer Moderator

2023-03-21T21:33:17.9433333+00:00

Firstly, this is a public forum and do not share any information like emails or personal details.

In this case, it is better to contact Microsoft Support and check with them.
Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2023-04-07T02:01:46.1633333+00:00

Hi @ Christel Desmet ，

I'm here to confirm with you if your issue has been resolved.

If the problem is successfully solved, you can share your solution or accept the helpful reply as answer, this will make answer searching in the forum easier and be beneficial to other community members as well.
Christel Desmet 0 Reputation points

2023-04-29T18:15:32.0333333+00:00

Hi, still not solved, do not find a decent answer nor solution. The message I keep receiving is :

*"The task 'Synchronizing the subscribed folders of ******@xxxxxxxxxxxxxxxxxx.eu.' reported error (0x800CCC0E) : 'Outlook cannot sync subscribed folders from *****@xxxxxxxxxxxxxxxxxxx.eu. Error: Cannot connect to the server. If you continue to receive this message, please contact your server administrator or Internet Service Provider (ISP)."

Now and then it helps activating a VPN, but most of the time it doesn't

Answer 1

Hi @ Christel Desmet ，

When you send an email, do you receive the following NDR?

550 5.7.511 Access denied, banned sender[xxx.xxx.xxx.xxx]

If so, you could use the delisting portal to remove yourself from the blocked senders list:

Remove yourself from the blocked senders list and address 5.7.511 Access denied errors - Office 365 | Microsoft Learn

Moreover, if the above is not your scenario or I have misunderstood anything, please correct me and provide us with detailed information about the issue including the screenshot so that we can better understand to further assist you.

(In order to avoid the disclosure of your privacy, please remember to hide your personal information).

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread

Christel Desmet 0 Reputation points

2023-05-01T16:41:52.3933333+00:00

*"The task 'Synchronizing the subscribed folders of ******@xxxxxxxxxxxxxxxxxx.eu.' reported error (0x800CCC0E) : 'Outlook cannot sync subscribed folders from *****@xxxxxxxxxxxxxxxxxxx.eu. Error: Cannot connect to the server. If you continue to receive this message, please contact your server administrator or Internet Service Provider (ISP)."

Now and then it helps activating a VPN, but most of the time it doesn't

Share via

IP blocking

1 answer

Your answer