Tip: Port numbers

We've seen cases where ISPs routinely block port 25. If you are having problems sending emails out of fmSpark due to connection errors (-037), try changing your port settings to 465 or 587.
Your ISP may have a special port for outbound emails too, check with them in case these port numbers don't work.
Your ISP may have a special port for outbound emails too, check with them in case these port numbers don't work.