I've just installed a C350 for a mobile operator client and they have an email to sms feature for their clients.
When IronPort delivers to the SMS server, we get a bounce message back. IronPort seems to be trying to deliver to the server but the server is rejecting the message.
When MX record is pointed directly to SMS server, it works fine. So, clearly there's a problem when IronPort is sending the message.
Here is the mail delivery error:
The following message to <2307297555> was undeliverable.
The reason for the problem:
5.1.0 - Unknown address error 552-'email size is too long'
If you send a mail to [email protected] . you should be getting the delivery error.
Do you have any idea on how we can fix it , or is IronPort modifying something ??
Looking for a prompt solution please
Thanks in advance,