Exchange not receiving some emails with attachments.
I've been having some problems receiving emails with attachments from another company's exchange server.
Whenever someone from that company sends an email with attachments to our server it never reaches it and returns a Email Delayed mail to the sender. If the email is sent without the attachment but everything else is the same, it does arrive without a problem.
I asked guys on the other company to send the same emails (with attachments) to my private gmail account and I received them instantly. And if I send those emails to my company email with my gmail account , I receive it as well.