HOLD process looping and eating up memory

["Michael R. Gettes" <gettes@Princeton.EDU>]

I am running ZMailer router (2.99.48p3 #1: Thu May 29 15:21:13 EDT 1997)

I have not seen any postings to the list that address this problem
since the last time I reported it. the hold transport agent
is looping (truss output is below) on Sunos5.5.1. Not only is
it looping, but I just killed it this morning due to the fact
that is 124MB in size. I believe this is reproducible. mailq
shows the following:

hold/*/0
    hold/ns:uhavax.hartford.com/any/0 R=1  A=3046743 P=13456 HA=1s FA=1s OF=1  
QA=1d4h
    hold/ns:ns1.chinaonline.com.cn.net/any/0 R=1  A=2  W=2960s QA=55m6s
        Threads:    2 Msgs:     2 Procs:   1 Idle:   0 Plim:  20 Flim: 150 

doing an nslookup shows both of these having non-existant domains.

/mrg

write(1, " # h u n g r y\n", 8)                 = 8
read(0, " # i d l e\n X / D / 5 4".., 8192)     = 50
write(1, " # h u n g r y\n", 8)                 = 8
getpid()                                        = 13456 [24321]
open("X/D/541401-24676", O_RDWR)                = 3
fstat(3, 0xEFFFF218)                            = 0
fcntl(3, F_SETFD, 0x00000001)                   = 0
mmap(0x00000000, 1230, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0xEF750000
read(3, " i   5 4 1 4 0 1 - 2 4 6".., 1230)     = 1230
open("../queue/X/D/541401-24676", O_RDONLY)     = 4
fstat(4, 0xEFFFF218)                            = 0
fcntl(4, F_SETFD, 0x00000001)                   = 0
mmap(0x00000000, 3992, PROT_READ, MAP_SHARED, 4, 0) = 0xEF5B0000
getpid()                                        = 13456 [24321]
write(1, " 5 4 1 4 0 1 / 1 6 2\t t".., 138)     = 138
time()                                          = 870095277
fstat(5, 0xEFFFAC88)                            = 0
time()                                          = 870095277
getpid()                                        = 13456 [24321]
putmsg(5, 0xEFFFA340, 0xEFFFA334, 0)            = 0
fstat(6, 0xEFFFA1F0)                            = 0
fcntl(6, F_SETLK, 0xEFFFA29C)                   Err#11 EAGAIN
munmap(0xEF5B0000, 3992)                        = 0
munmap(0xEF750000, 1230)                        = 0
close(3)                                        = 0
close(4)                                        = 0
write(1, " # h u n g r y\n", 8)                 = 8
read(0, " # i d l e\n X / D / 5 4".., 8192)     = 50
write(1, " # h u n g r y\n", 8)                 = 8
g