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What's New

Mirai Botnet Affecting IoT Devices

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50% reduction in Prices of Landline Premium Numbers

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Now MTNL, Mumbai Landline/Dolphin customers can pay their bills using UPI, BharatQR on Selfcare Portal

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Opportunities to partner with MTNL for provision of FTTH services on Revenue share basis.
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To Let

Prime Commercial Space on Rent

More than 3 Lac Sq. Ft. commercial space in MTNL Buildings at strategic locations across Mumbai, Navi Mumbai & Mira-Bhayandar available for lease For more details click here

Renting Space for Vending Van Parking at BKC TE Compound

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MTNL is providing free SMTP Email Relay services to Broadband customers.If you are availing this service,this announcement may affect you.You are requested to take appropriate action.

What is being done ?

All broadband customers who have Static IP can relay emails through smtp.mtnl.net.in. To make this process more secure ,one layer of DNS checking is being added.

Why it is being done.?

 As of now MTNL relays emails from any Broadband Static IP.This is being misused by some people to send out SPAM from the email server of a genuine customer.By adding this SPF check , MTNL prevents spammers from being able to misuse the facility.

Who is affected.?

Broadband customers with Static IP who are relaying emails directly through smtp.mtnl.net.in , without authentication are affected by this.

Who is not affected by this.?

 Broadband customers without Static IP are not affected by this.

What should affected persons do ?

In your domain DNS, SPF records need to be either added or updated with the IP address of your Static IP as well as MTNL Email servers.For example if your domain name is 'apharma.com' , the SPF record of this domain needs to be added/updated to include 

  • MTNL Static IP address (eg:
  • a:nsdlvry.mtnl.net.in a:dlvry.mtnl.net.in 

When will this change start ?

This change will be implemented on 12th june 2017.If any client tries to relay emails after this date,without updating the SPF record , the emails will not be accepted.

At this time, we would like to thank for your continued support.If you do have any queries , please email or call us at 022-24331175.


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