Comments on: Configuring Max Email Message Size Limits for Office 365

By:

zohaib

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Author zohaib acts as a real person and passed all tests against spambots. Anti-Spam by CleanTalk.

zohaib — Tue, 13 Aug 2024 12:07:32 +0000

unable to receive more than 35 MB from outside organization in exchange server hybrid environment.
I have set maximum send size is 35 MB and receive size is 45 MB. but when i send email from outside around 30MB so give me below error that limit is 35 MB, Although i have set 45 MB in receive connector and transport as well. please suggest.

By: Robert

Robert — Fri, 16 Jun 2023 14:38:04 +0000

In reply to Patrice. This isn't a problem of the e-mail servicing. This is a process of information sharing issue and I cannot tell end users and admins enough- e-mail is not your storage platform.

By: Patrice

Patrice — Thu, 02 Feb 2023 07:04:20 +0000

The problem of raising the limit of the message is many mail servers in the world are not allowing messages of this size ! And the mail could never reach the recipient (sometimes without any warning).

Another option is to use a third party product like Attach2Cloud, this product allows uploading to OneDrive, SharePoint or Teams the attachments directly from inside Outlook in a few seconds through a very easy-to-use control center.
The limit of the attachment size is then the limit of the size of the cloud service (which is huge and could be 250GB for OneDrive by example! )
Thus the message that goes through the servers is only a few kb only as the attachments are links to the cloud service (modern attachments).
This product can be easily installed and tested, through the fully functional evaluation available on its Attach2Cloud website.

And it integrate the Z-OptimiZr/ZipMail optimization engine that drastically reduce the size of XML and pictures files by optimizing them without loosing quality.

By: Christian

Christian — Tue, 01 Nov 2022 16:43:25 +0000

Thanks for the great article Paul! Helped me to set new limits for one of our mailboxes. Much appreciated!

By: John Abbott

John Abbott — Wed, 16 Sep 2020 11:30:39 +0000

Hi Paul, thanks for the article.
We have a hybrid Exchange 2013/365 environment while migrating users. An unusual situation, where an onprem mailbox had 1K MaxSendSize, MaxReceive & hidden, due to being on long term leave. That mailbox then migrated to 365 & there it appears to have the default 35MB limits, both in EAC & via a check with Get-Mailbox. However, the user still has 1K limits when trying to use mailbox. Can’t do similar check onprem, as mailbox no longer there.
Does anyone have advice on checking/resolving this please?
Thanks John

By: Stephen Michael Robards

Stephen Michael Robards — Sat, 14 Mar 2020 22:38:53 +0000

I need to upgrade my office 365 to the highest possible size of email and attachments possible in the middle of my 365 contract.

By: Shan

Shan — Thu, 02 May 2019 11:07:37 +0000

Hi Paul, we have Exchange on premise. I have put 35 MB limit on the transport and connector level and 15 MB limit on all existing mailboxes. However, the 15 MB limit does not apply automatically for any new mailbox that gets created. For O365, we have the default mailbox plan. What is the equivalent for on premise Exchange? Thank you

By:

Paul Cunningham

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Author Paul Cunningham acts as a real person and passed all tests against spambots. Anti-Spam by CleanTalk.

Paul Cunningham — Wed, 06 Jun 2018 20:52:50 +0000

In reply to Francis Revere. Is the user licensed differently than the rest of the users? If not, then I would suggest you open a support case to find out what else is going on.

By: Francis Revere

Francis Revere — Wed, 06 Jun 2018 17:54:10 +0000

Paul,

I ran a “Get-RemoteMailbox | Sort-Object Name | ft Name,Alias,MaxReceiveSize,MaxSendSize,RecipientLimits” and all my users, including myself, who recently started show all as “Unlimited” except for one user who has MaxReceiveSize set to 20MB. Discovered this after they reported not receiving a large email which 5 other recipients did. Obviously something is wrong here. I do get the exact error you did when trying to change the MaxReceiveSize higher than 150MB. Would post snippet to show, but….

By: Configure Max Email Message Size for Office 365 using MailboxPlan – Office365 Cloud for My site

Thu, 27 Jul 2017 06:33:19 +0000

[…] size down to 35 MB on default mailbox plan or specific group, how can I do that? When I check this post , I can use Set-MailboxPlan , but before use that cmdlet, use Get-MailboxPlan so that verify […]