SO_DOCUMENT_SEND_API1

Hi Experts,

We are using one custom program to send mails to users using SO_DOCUMENT_SEND_API1 function module.

upto last week it was working fine.

my network team had changed the port for mail server last week.after that this program is not working.

i have checked with Basis teeam , they have tested in SAP Business workplace.

mails are going perfectly.

Can you please help me with some inputs.

We are using 4.6C system.

Thanks

Sai