WowAce

What steps will reproduce the problem?
1. Simply mail any item and the below error log occurs.
2. It stops working totally with this error.
3.

What is the expected output? What do you see instead?
It will not accept any further mailing. The mod essentially locks up totally. Receiving mail still works.
Clicking back on receiving mail, it will not allow clicking on sending mail tab - the tab becomes dead.

What version of the product are you using?
r326 | dhedbor | 2010-12-06 09:40:15 +0000 (Mon, 06 Dec 2010) | 1 line
Changed paths:
   A /tags/4.0.2 (from /trunk:325)

Do you have an error log of what happened?
Date: 2010-12-13 11:11:35
ID: 2
Error occured in: Global
Count: 1
Message: ..\AddOns\BulkMail2\BulkMail.lua line 1331:
   bad argument #1 to 'strlen' (string expected, got table)
Debug:
   [C]: ?
   [C]: ?
   BulkMail2\BulkMail.lua:1331: ShowSendQueueGUI()
   BulkMail2\BulkMail.lua:1288: RefreshSendQueueGUI()
   BulkMail2\BulkMail.lua:318:
      BulkMail2\BulkMail.lua:306
   (tail call): ?
   BulkMail2\BulkMail.lua:661:
      BulkMail2\BulkMail.lua:657
   (tail call): ?
   [C]: ContainerFrameItemButton_OnModifiedClick()
   [string "*:OnClick"]:10:
      [string "*:OnClick"]:1
AddOns:
  Swatter, v5.9.4933 (WhackyWallaby)
  Ace3, v
  ACP, vr137
  AraBrokerGuildFriends, vr35
  AtlasLoot, vv6.01.01
  AucAdvanced, v5.9.4933 (WhackyWallaby)
  AucFilterBasic, v5.9.4933 (WhackyWallaby)
  AucFilterOutlier, v5.9.4933.2531
  AucMatchUndercut, v5.9.4933.2531
  AucScanData, v5.9.4933 (WhackyWallaby)
  AucStatiLevel, v5.9.4880 (WhackyWallaby)
  AucStatPurchased, v5.9.4933 (WhackyWallaby)
  AucStatSales, v5.9.4933.2842
  AucStatSimple, v5.9.4933 (WhackyWallaby)
  AucStatWOWEcon, v5.9.4933.2530
  AucUtilAHWindowControl, v5.9.4933.3311
  AucUtilAppraiser, v5.9.4933.2530
  AucUtilAskPrice, v5.9.4933.3175
  AucUtilAutoMagic, v5.9.4933.3142
  AucUtilCompactUI, v5.9.4933.2530
  AucUtilEasyBuyout, v5.9.4933.3583
  AucUtilGlypher, v5.9.4933.2545
  AucUtilItemSuggest, v5.9.4933.3108
  AucUtilPriceLevel, v5.9.4933.2545
  AucUtilScanButton, v5.9.4933.2530
  AucUtilScanFinish, v5.9.4933.2530
  AucUtilScanProgress, v5.9.4933.2530
  AucUtilScanStart, v5.9.4933.4819
  AucUtilSearchUI, v5.9.4933.3655
  AucUtilSimpleAuction, v5.9.4933.4546
  AucUtilVendMarkup, v5.9.4933.2530
  AutoBar, vv4.0.3.06
  Babylonian, v5.1.DEV.130
  BadBoy, v6.216
  BadBoyCCleaner, v3.12
  BadBoyLevels, v2.75
  BagSlots, vv1.3.5
  Bartender4, v4.4.15
  BeanCounter, v5.9.4933 (WhackyWallaby)
  Broker2FuBar, v1.0
  BrokerDurabilityInfo, v1.6
  BrokeruClock, v3.3.2
  BulkMail2, v4.0.2
  BulkMail2Inbox, v4.0.5
  ButtonFacade, v4.0.344
  ButtonFacadeLiteStep, v4.0.55
  Cellular, v4.0.003
  ChatSounds, v
  Configator, v5.1.DEV.268
  CooldownCount, v3.4
  CowTip, v
  DebugLib, v5.1.DEV.275
  Examiner, v10.12.06
  expstats, vv4.0.3.2
  fontain, v
  FuBar, v
  FuBarFactionsFu, v2.3.0-81
  FuBarGroupFu, v1
  FuBarLocationFu, v3.0
  FuBarPerformanceFu, v2.0.0
  FuBarRestFu, vv1.3.5
  GatherMate2, v1.0.7
  GnomeWorks, v96
  Informant, v5.9.4933 (WhackyWallaby)
  knameplates, v1
  LibRock10, v
  LibStub, v
  Mapster, v1.4.0-5-g2b3b890
  MikScrollingBattleText, v5.5.91
  MrCurrency, v1.0
  Omen, v3.1.0
  OneBag3, vv3.3.12
  Prat30, vr758
  Prat30Libraries, v
  Quartz, v3.0.4
  RatingBuster, v
  SellJunk, v3.0
  SexyMap, v
  ShadowedUnitFrames, vv3.3.2
  SharedMedia, v3.0.4-179
  SilverDragon, vv2.4.2
  Skada, vr310
  SkadaDamage, v1.0
  Squire2, v1.0.5
  Stubby, v5.9.4933 (WhackyWallaby)
  SunnArt, v3.49
  TomTom, vv40000-1.0.7
  Volumizer, v4.0.1-1.2.5
  XLoot, v0.91.1
  XLootGroup, v0.61
  XPBarNone, vv1.5.4
  ZygorGuidesViewer, v3.0
  BlizRuntimeLib_enUS v4.0.3.40000 <us>
  (ck=9ad)

Please provide any additional information below.

I downloaded and tried r322 and get the same results.