Problem

Occasionally connection get refused with error code 302 or 416

On some occasions the transfers resume without any delay?

I:E, log captured for a 416 error:

10:36:50 CFTT13I PART=MyPart IDM=MyIDF IDT=I1210504 _ Session parameters PROT=PESITANY SAP=1765 HOST=my.partner.host 
10:36:50 CFTT75E PART=MyPart IDM=MyIDF IDT=I1210504 connect reject 416 MAXCNX 
10:36:50 CFTT13I PART=MyPart IDM=MyIDF IDT=I1210504 _ Session parameters PROT=PESITANY SAP=1765 HOST=my.partner.host 
10:36:50 CFTT75E PART=MyPart IDM=MyIDF IDT=I1210504 connect reject 416 MAXCNX 
10:36:50 CFTT13I PART=MyPart IDM=MyIDF IDT=I1210504 _ Session parameters PROT=PESITANY SAP=1765 HOST=my.partner.host 
10:36:50 CFTT75E PART=MyPart IDM=MyIDF IDT=I1210504 connect reject 416 MAXCNX 
10:36:50 CFTT13I PART=MyPart IDM=MyIDF IDT=I1210504 _ Session parameters PROT=PESITANY SAP=1765 HOST=my.partner.host 
10:36:50 CFTT59I PART=MyPart IDM=MyIDF IDT=I1210504 Requester reply transfered 
10:36:50 CFTT75E PART=MyPart IDM=MyIDF IDT=I1210504 connect reject 416 MAXCNX 
10:36:50 CFTT13I PART=MyPart IDM=MyIDF IDT=I1210504 _ Session parameters PROT=PESITANY SAP=1765 HOST=my.partner.host

Resolution

In the reported issue, the affected transfers are always messages.

the rules for rescheduling a transfer does not apply because it is messages and not files that are concerned.

The retry mechanism documented is for the files only while when messages are concerned, there is no delay in between attempts.