I commented out the try and put an eval back in, and after the call got: 
SV = PV(0x187eb88) at 0x1880ce8
  REFCNT = 1
  FLAGS = (ROK)
  RV = 0x55b67b0
  SV = PVHV(0x55aa5f0) at 0x55b67b0
    REFCNT = 1
    FLAGS = (OBJECT,OVERLOAD,SHAREKEYS)
    STASH = 0x49f1540   "Email::Sender::Failure"
    ARRAY = 0x55dfed0  (0:3, 1:3, 2:2)
    hash quality = 111.4%
    KEYS = 7
    FILL = 5
    MAX = 7
    RITER = -1
    EITER = 0x0
    Elt "stack_trace" HASH = 0x7848e70
    SV = PVMG(0x56b3b30) at 0x56778c0
      REFCNT = 1
      FLAGS = (ROK)
      IV = 0
      NV = 0
      RV = 0x56779f8
      SV = PVHV(0x55aa708) at 0x56779f8
        REFCNT = 1
        FLAGS = (OBJECT,OVERLOAD,SHAREKEYS)
        STASH = 0x567ad90       "Devel::StackTrace"
        ARRAY = 0x55dbba0  (0:5, 1:3)
        hash quality = 150.0%
        KEYS = 3
        FILL = 3
        MAX = 7
        RITER = -1
        EITER = 0x0
        Elt "index" HASH = 0x91501139
        SV = NULL(0x0) at 0x56779e0
          REFCNT = 1
          FLAGS = ()
      PV = 0x56779f8 ""
      CUR = 0
      LEN = 0
    Elt "_recipients" HASH = 0x82243041
    SV = RV(0x56b5af8) at 0x56b5ae8
      REFCNT = 1
      FLAGS = (ROK)
      RV = 0x56b5a58
      SV = PVAV(0x5675d40) at 0x56b5a58
        REFCNT = 1
        FLAGS = ()
        ARRAY = 0x258b8a0
        FILL = 0
        MAX = 0
        ARYLEN = 0x0
        FLAGS = (REAL)
        Elt No. 0
        SV = PV(0x56ae658) at 0x56b5ab8
          REFCNT = 1
          FLAGS = (POK,pPOK)
          PV = 0x56a4ff0 "sales@LEDsbythefoot.com"\0
          CUR = 23
          LEN = 24
    Elt "stack_trace_class" HASH = 0x850b24fb
    SV = PV(0x527e468) at 0x5677638
      REFCNT = 1
      FLAGS = (POK,pPOK)
      PV = 0x55dd2f0 "Devel::StackTrace"\0
      CUR = 17
      LEN = 24
  PV = 0x55b67b0 ""
  CUR = 0
  LEN = 0

[download]
I changed it to Dump($@) if $@; to make sure it was still testing as true, and then got a shorter dump: 
SV = PV(0x187eb88) at 0x1880ce8
  REFCNT = 1
  FLAGS = (POK,pPOK)
  PV = 0x5592da0 ""\0
  CUR = 0
  LEN = 8

[download]
So... testing it as a bool will destroy it! Am I reading that right?

In reply to Re^2: Where did $@ go? by John M. Dlugosz
in thread Where did $@ go? by John M. Dlugosz

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