Incoming connection

[rockbd]

Dear Sir Recently following error is showing in some of my mail coming in my IronPort from outside domain. What is the actually cause. Is it network issue or Ironport problem. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 27 Feb 2018 21:45:24 (GMT +06:00) Protocol SMTP interface Management (IP X.X.X.X) on incoming connection (ICID 3324025) from sender IP X.X.X.X. Reverse DNS host sonic309-47.consmr.mail.ne1.yahoo.com verified yes. 27 Feb 2018 21:45:24 (GMT +06:00) (ICID 3324025) ACCEPT sender group UNKNOWNLIST match sbrs[-1.0:10.0] SBRS 3.5 country United States 27 Feb 2018 21:45:25 (GMT +06:00) Incoming connection (ICID 3324025) successfully accepted TLS protocol TLSv1.2 cipher AES128-GCM-SHA256. 27 Feb 2018 21:45:26 (GMT +06:00) Start message 5483325 on incoming connection (ICID X). 27 Feb 2018 21:45:26 (GMT +06:00) Message 5483325 enqueued on incoming connection (ICID 3324025) from abc_xyz@yahoo.com. 27 Feb 2018 21:45:26 (GMT +06:00) Message 5483325 on incoming connection (ICID X) added recipient (abc.xyz@abc.org.test). 27 Feb 2018 21:45:51 (GMT +06:00) Message 5483325 SPF: helo identity postmaster@sonic309-47.consmr.mail.ne1.yahoo.com None 27 Feb 2018 21:45:59 (GMT +06:00) Message 5483325 SPF: mailfrom identity abc_xyz@yahoo.com Pass 27 Feb 2018 21:49:48 (GMT +06:00) Message 5483325 failed on incoming connection (ICID X). Message size exceeds limit. 27 Feb 2018 21:49:48 (GMT +06:00) Message 5483325 aborted: Receiving aborted 27 Feb 2018 21:51:00 (GMT +06:00) Incoming connection (ICID X) lost. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Waiting for a reply.

Thanks in advance.

[Ardhiannash]

Hi,

im trying to understand the error and catch some clue on this.

based on :

 27 Feb 2018 21:49:48 (GMT +06:00) Message 5483325 failed on incoming connection (ICID X). Message size exceeds limit. 27 Feb 2018 21:49:48 (GMT +06:00) Message 5483325 aborted: Receiving aborted 27 Feb 2018 21:51:00 (GMT +06:00) Incoming connection (ICID X) lost. 

there is incoming connection failure because.

the SMTP categorize the mail size to be overlimitation and aborted it

to make it simple. the message size is too big, you should try to change the message size limit first.

[Deepak Kumar]

Hi,

Issue is: 

Message size exceeds limit.

This is not a network issue. The sender is sending a mail more than the limit which can your server handle. Ask the sender to send a small attachment.

Regards,

Deepak Kumar