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SMTP Server Options
Mobile Service Provider SMTP Servers
Most Mobile operators have an SMTP server for their customers to use, in many cases users create accounts on
the mobile provider website that they can then access through their phone. The services are free however they
are limited in the respect that only one email address is available to send mail from and it will generally end with
the company's name, i.e. example@T-mobile.co.uk
Other "Free" SMTP Servers
There are many 'free' SMTP service providers however nothing comes for free, each will have a catch. Either
similarly to mobile provider SMTP servers you will only be able use a single email address with the companies
name in it, or there will be very low usage allowance on the account.
Your SMTP server
Most companies now have their own SMTP server as part of their IT infrastructure this can be used as a relaying
SMTP server, however this does require the SMTP server to be exposed onto the internet. Obviously there is no
running cost and no limit to the email addresses mail can be sent from, however it can pose a security issue for
system administrators as it could be possible to configure the T24-RDC to overrun an SMTP server which could
then in turn over run your company's SMTP server. In Addition some maintenance would be required if the
senders email addresses were changed.
Web Based Relaying SMTP server
Mantracourt has gone down the path of outsourcing our SMTP server forwarding to a web based SMTP server.
This allows us to send emails from any device from a PC to T24-RDC using any validated sender email address.
Sending Email addresses are validated by the relaying SMTP server via an authentication email to the email
account. The cost of this service is variable depending on the amount of data being sent; typically a service
relaying 1000 emails with up to a total 1.0GB of attachments from up to 55 different email addresses per month
will cost £100 per annum.
Using a relaying service removes any risk of using your company server as well as allowing you to choose a
multitude of senders email addresses. Also by using a relay service it does not matter which service provider you
are using. You can also check you service usage and adjust your price package online allowing easy management
of the T24-RDC overheads.
SMTP Server Providers
www.authsmtp.com
(Mantracourt's Provider)
Mantracourt Electronics Limited
www.smtp.com
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