Australian Bigpond email address users. Is your mail being rejected? This would be why.


antspants

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Australian Bigpond email address users. Is your mail being rejected?

This would be why:

Australian telecommunications provider Telstra has very recently implemented a "p=reject" DMARC policy for their primary email domains (telstra.com, telstra.com.au, bigpond.com and bigpond.com.au). What this means for senders is that it is no longer safe to use these domains in your from address when sending from anything other than Telstra's email platform. No using Telstra email addresses to send mail from your ESP, CRM or newsletter platform -- these domains are now configured so that ISPs are encouraged to reject mail from these domains when not authenticated properly.

I couldn’t work out why the domain name expiry emails were’t reaching clients.

I am at a loss to understand why Telstra would do this.
 

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Telstra Bigpond host mail for "msn.com.au" as well, and this is indeed reflected in the MX record for that domain. It points to a unique "extmail.msn.bigpond.com" but the server IP addresses behind that are the same as the normal "extmail.bigpond.com" servers.

 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 Build: 22631.3374
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4th Gen?)
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    Onboard
    Monitor(s) Displays
    4 x LG 23MP75 1 x 24" LG M38H 1 x 32" LF6300 TV Monitor 1 x Wacom Pro 22" Tablet
    Screen Resolution
    All over the place
    Hard Drives
    2 x WD something Something 8TB HDD's / 2 x WD something Something 4TB HDD's / 1 x EVO 1TB SSD / 2 x QVO 1TB SSD's / 1 x EVO 250 GB SSD / 2 x QVO 1TB (External Hub) / 1 x EVO 1TB (Portable Backup Case)
    PSU
    Silverstone 1500
    Case
    NZXT Full Tower
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech G402 / G502 / Mx Masters / MX Air Cordless
    Internet Speed
    100/40Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    I’m on a horse.
  • Operating System
    Windows 11 Pro 22621.2215
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7i EVO OLED 14" Touchscreen i5 12 Core 16GB/512GB
    CPU
    Intel Core 12th Gen i5-1240P Processor (1.7 - 4.4GHz)
    Memory
    16GB LPDDR5 RAM
    Graphics card(s)
    Graphics processor is an Intel Iris Xe
    Sound Card
    optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512GB
    Other Info
    …still on a horse.
Telstra hosts email for a few other domains and companies, though seemingly not many. Thirty-five domains (of the top 10 million domains) that seem to have their email hosted by Telstra or Bigpond. Here's a list:



  • Bigpond: henkel.com.au, bigpond.com.au, telstratv.com, bigblog.com.au, bigpondmovies.com, bigpond.net.au, bigpondmusic.com, octapharma.com.au, telstra.com, airchina.com.au, firsthome.gov.au
  • Telstra: telstraglobal.com, afma.gov.au, immi.gov.au, globalaustralia.gov.au, customs.gov.au, telstrawholesale.com.au, crimtrac.gov.au, nationalsecurity.gov.au, asio.gov.au, crimecommission.gov.au, border.gov.au, acic.gov.au, homeaffairs.gov.au, tisnational.gov.au, royalcommission.gov.au, cisc.gov.au, telstrawholesale.com, abf.gov.au, cicentre.gov.au, triplezero.gov.au, abtc-aps.org, scec.gov.au, law.gov.au, ag.gov.au
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 Build: 22631.3374
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4th Gen?)
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    Onboard
    Monitor(s) Displays
    4 x LG 23MP75 1 x 24" LG M38H 1 x 32" LF6300 TV Monitor 1 x Wacom Pro 22" Tablet
    Screen Resolution
    All over the place
    Hard Drives
    2 x WD something Something 8TB HDD's / 2 x WD something Something 4TB HDD's / 1 x EVO 1TB SSD / 2 x QVO 1TB SSD's / 1 x EVO 250 GB SSD / 2 x QVO 1TB (External Hub) / 1 x EVO 1TB (Portable Backup Case)
    PSU
    Silverstone 1500
    Case
    NZXT Full Tower
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech G402 / G502 / Mx Masters / MX Air Cordless
    Internet Speed
    100/40Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    I’m on a horse.
  • Operating System
    Windows 11 Pro 22621.2215
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7i EVO OLED 14" Touchscreen i5 12 Core 16GB/512GB
    CPU
    Intel Core 12th Gen i5-1240P Processor (1.7 - 4.4GHz)
    Memory
    16GB LPDDR5 RAM
    Graphics card(s)
    Graphics processor is an Intel Iris Xe
    Sound Card
    optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512GB
    Other Info
    …still on a horse.

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