Thank you for reply
I have another server work in this settings of mx records and receive email quickly without any problem
why i remove second line
what i do changes only sme server from old computer A
to new computer have good capacities AS B
Computer A old system of sme receiving good in these settings of mx records
This meaning problem in settings of sme server B(NEW SYSTEM)
What the problem that prevent receiving in sme server new (computer B)