why exchange on premise cannot receive mails event if attachment limit is 60MB

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Super Contributor

Please check on why exchange on premise cannot receive mails event if attachment  limit is 60MB

 

exchange setting:

 

unli 60.JPG

 

NDRs:

 

size.JPG

 

err.JPG

 

Any known issue?

 

thanks

2 Replies
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is your exchange server connected directly to the internet? Or do you route mail through a spam firewall device? That device must also allow send/receive maximums.
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There are multiple levels on which you need to update limits for larger attachments, as detailed here: https://technet.microsoft.com/en-us/library/bb124345(v=exchg.150).aspx

 

 In addition, there are some client-specific limtis: http://technet.microsoft.com/en-us/library/hh529949(v=exchg.150).aspx