smtpd hostname directive not honored

[Rune Lynge]

>Synopsis: smtpd hostname directive not honored
>Category: system
>Environment:
        System      : OpenBSD 4.6
        Details     : OpenBSD 4.6-current (GENERIC.MP) #251: Mon Nov  2
11:24:41 MST 2009
                         deraadt@...:/usr/src/sys/arch/amd64/compile/GENERIC.MP

        Architecture: OpenBSD.amd64
        Machine     : amd64
>Description:
        smtpd.conf(5) mentions the possibility to "Specify the domain name of
the server" by entering a "hostname name" configuration directive in
/etc/mail/smtpd.conf thereby overruling/rewriting the default of what
is returned by hostname(1). This configuration directive is not
honored. Outgoing mail send from a local account on the local host
still has a "from address" in a form of myname@...
even though /etc/mail/smtpd.conf contains a linie like "hostname
mydomain.com".
>How-To-Repeat:
        Enter a hostname directive in /etc/mail/smtpd.conf like "hostname
mydomain.com" and restart smtpd. Send a mail from a local account to a
non-local address. Watch the maillog and observe the from address.
>Fix:
        Unknown.


dmesg:
OpenBSD 4.6-current (GENERIC.MP) #251: Mon Nov  2 11:24:41 MST 2009
    deraadt@...:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 3175813120 (3028MB)
avail mem = 3088822272 (2945MB)
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xe0010 (80 entries)
bios0: vendor LENOVO version "6EET40WW (3.00 )" date 04/16/2009
bios0: LENOVO 2776LEG
acpi0 at bios0: rev 2
acpi0: tables DSDT FACP SSDT ECDT APIC MCFG HPET SLIC BOOT ASF! SSDT
SSDT TCPA DMAR SSDT SSDT SSDT
acpi0: wakeup devices LID_(S3) SLPB(S3) IGBE(S4) EXP0(S4) EXP1(S4)
EXP2(S4) PCI1(S4) USB0(S3) USB1(S3) USB2(S3) USB3(S3) USB4(S3)
USB5(S3) EHC0(S3) EHC1(S3) HDEF(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM)2 Duo CPU U9400 @ 1.40GHz, 1396.76 MHz
cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,VMX,SMX,EST,TM2,CX16,xTPR,NXE,LONG
cpu0: 3MB 64b/line 8-way L2 cache
cpu0: apic clock running at 199MHz
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Core(TM)2 Duo CPU U9400 @ 1.40GHz, 1396.50 MHz
cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,VMX,SMX,EST,TM2,CX16,xTPR,NXE,LONG
cpu1: 3MB 64b/line 8-way L2 cache
ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 24 pins
ioapic0: misconfigured as apic 2, remapped to apid 1
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (AGP_)
acpiprt2 at acpi0: bus 2 (EXP0)
acpiprt3 at acpi0: bus 3 (EXP1)
acpiprt4 at acpi0: bus -1 (EXP2)
acpiprt5 at acpi0: bus 21 (PCI1)
acpiec0 at acpi0
acpicpu0 at acpi0: C3, C2, C1, PSS
acpicpu1 at acpi0: C3, C2, C1, PSS
acpipwrres0 at acpi0: PUBS
acpitz0 at acpi0: critical temperature 127 degC
acpitz1 at acpi0: critical temperature 105 degC
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
acpibat0 at acpi0: BAT0 model "42T4643" serial   395 type LION oem "SANYO"
acpibat1 at acpi0: BAT1 not present
acpiac0 at acpi0: AC unit online
acpithinkpad0 at acpi0
cpu0: Enhanced SpeedStep 1396 MHz: speeds: 1401, 1400, 1200, 800 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel GM45 Host" rev 0x07
vga1 at pci0 dev 2 function 0 "Intel GM45 Video" rev 0x07
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
intagp0 at vga1
agp0 at intagp0: aperture at 0xd0000000, size 0x10000000
inteldrm0 at vga1: apic 1 int 16 (irq 11)
drm0 at inteldrm0
"Intel GM45 Video" rev 0x07 at pci0 dev 2 function 1 not configured
"Intel GM45 HECI" rev 0x07 at pci0 dev 3 function 0 not configured
em0 at pci0 dev 25 function 0 "Intel ICH9 IGP M AMT" rev 0x03: apic 1
int 20 (irq 11), address 00:24:7e:11:ad:42
uhci0 at pci0 dev 26 function 0 "Intel 82801I USB" rev 0x03: apic 1
int 20 (irq 11)
uhci1 at pci0 dev 26 function 1 "Intel 82801I USB" rev 0x03: apic 1
int 21 (irq 11)
uhci2 at pci0 dev 26 function 2 "Intel 82801I USB" rev 0x03: apic 1
int 22 (irq 11)
ehci0 at pci0 dev 26 function 7 "Intel 82801I USB" rev 0x03: apic 1
int 23 (irq 11)
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
azalia0 at pci0 dev 27 function 0 "Intel 82801I HD Audio" rev 0x03:
apic 1 int 17 (irq 11)
azalia0: codecs: Conexant CX20561
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 82801I PCIE" rev 0x03: apic 1
int 20 (irq 11)
pci1 at ppb0 bus 2
ppb1 at pci0 dev 28 function 1 "Intel 82801I PCIE" rev 0x03: apic 1
int 21 (irq 11)
pci2 at ppb1 bus 3
iwn0 at pci2 dev 0 function 0 "Intel WiFi Link 5300" rev 0x00: apic 1
int 17 (irq 11), MIMO 3T3R, MoW, address 00:21:6a:19:7d:8a
uhci3 at pci0 dev 29 function 0 "Intel 82801I USB" rev 0x03: apic 1
int 16 (irq 11)
uhci4 at pci0 dev 29 function 1 "Intel 82801I USB" rev 0x03: apic 1
int 17 (irq 11)
uhci5 at pci0 dev 29 function 2 "Intel 82801I USB" rev 0x03: apic 1
int 18 (irq 11)
ehci1 at pci0 dev 29 function 7 "Intel 82801I USB" rev 0x03: apic 1
int 19 (irq 11)
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1
ppb2 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0x93
pci3 at ppb2 bus 21
pcib0 at pci0 dev 31 function 0 "Intel 82801IEM LPC" rev 0x03
pciide0 at pci0 dev 31 function 2 "Intel 82801I SATA" rev 0x03: DMA,
channel 0 configured to native-PCI, channel 1 configured to native-PCI
pciide0: using apic 1 int 16 (irq 255) for native-PCI interrupt
wd0 at pciide0 channel 0 drive 0: <SAMSUNG MMCQE28G8MUP-0VA>
wd0: 16-sector PIO, LBA48, 122104MB, 250069680 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5
atapiscsi0 at pciide0 channel 1 drive 0
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <MATSHITA, DVD-RAM UJ-844, RC02> ATAPI
5/cdrom removable
cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2
ichiic0 at pci0 dev 31 function 3 "Intel 82801I SMBus" rev 0x03: apic
1 int 23 (irq 11)
iic0 at ichiic0
usb2 at uhci0: USB revision 1.0
uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb3 at uhci1: USB revision 1.0
uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb4 at uhci2: USB revision 1.0
uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb5 at uhci3: USB revision 1.0
uhub5 at usb5 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb6 at uhci4: USB revision 1.0
uhub6 at usb6 "Intel UHCI root hub" rev 1.00/1.00 addr 1
usb7 at uhci5: USB revision 1.0
uhub7 at usb7 "Intel UHCI root hub" rev 1.00/1.00 addr 1
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
spkr0 at pcppi0
aps0 at isa0 port 0x1600/31
mtrr: Pentium Pro MTRR support
uvideo0 at uhub0 port 6 configuration 1 interface 0 "Chicony
Electronics Co., Ltd. product 0x4807" rev 2.00/31.34 addr 2
video0 at uvideo0
uhidev0 at uhub2 port 1 configuration 1 interface 0 "Logitech USB-PS/2
Optical Mouse" rev 2.00/20.00 addr 2
uhidev0: iclass 3/1
ums0 at uhidev0: 3 buttons, Z dir
wsmouse1 at ums0 mux 0
ugen0 at uhub2 port 2 "AuthenTec Fingerprint Sensor" rev 2.00/17.03 addr 3
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
root on wd0a swap on wd0b dump on wd0b
iwn0: radio is disabled by hardware switch
iwn0: radio is disabled by hardware switch
iwn0: radio is disabled by hardware switch
iwn0: radio is disabled by hardware switch