how to increase receive message size in exchange server 2016 in hybrid environment?

[Zohaib_Yousuf]

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.

Error: 

i have configured following configuration. 

[#2]

Hi@Zohaib_Yousuf !

Have you checked the recipients mailbox so that it doesn't have different limits set on it? 

Get-Mailbox -Identity "Mailbox Name" | fl MaxReceiveSize

Have you also verified if any Transport rules might set other limits? 

Is the recipients mailbox in Exchange Server or Exchange Online? 

Is your Exchange server the first point of contact in your email flow? 

Let me know if further assistance is needed! 

Kind Regards
Oliwer Sundgren

[#3]

@oliwer_sundgren 

issue is just on-premise exchange users. Just on-premise user unable to receive email more than 35 MB. no issue on exchange online users.

[#4 · Accepted solution]

Hi again @Zohaib_Yousuf
I think I found what the issue could be, I took a look at your original screenshot again and noted that your MaxSendLimit on the Organisation level is set to 35 MB

According to this documentation, external recipients that send emails to your organisations are targeted by this limit as well, see the screenshot below

With this in mind, I believe that if you change the MaxSendSize to the wanted value these NDR´s should stop. 

Set-Transportconfig -MaxSendSize "45MB"

Let me know if that helps

Kind Regards
Oliwer

[#5]

@oliwer_sundgren 

Thanks for notify me. my issue has been resolved by set organization limit.