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Teamletter® - Blacklist Prevention
Teamware takes various measures to check the Teamletter®
servers for eventual blacklisting.
Member of eco community and participation in CSA whitelisting
Teamletter® was accepted as a member of the "Certified Senders Alliance"
by eco community on 15.06.2005 and is therefore whitelisted among the
participating email providers.
Example: 1&1, Arcor, AOL Germany, Colt, QSC, etc.
This means those providers accept emails sent by Teamletter® without spam filtering
because Teamletter® meets the strict criteria of the eco community.
More information: www.eco.de.
24/7 monitoring of the most important international blacklists
To be notified automatically about blacklistings Teamware uses a monitoring software
which checks the most important blacklists every 5 minutes for eventual listing of the
Teamletter® servers.
Analysis of newsletter opening rates
Teamletter® offers detailled statistics about the opening- and click rates of newsletters sent.
Those statistics can be filtered by recipient domains which makes domain with extremely low
rates obvious. This could be a hint for an active blacklisting of a newsletter.
Afterwards Teamware can contact those providers to reach a whitelisting.
Throttling of sending speed
Major providers accept only a certain amount of emails per time limit to prevent their servers
from being overloaded. Der Teamletter® offers "delayed delivery" which enables you to send
newsletters with short brakes after a predefined number of emails.
Example: Wait for x seconds after every y emails.
De-Listing
In case of blacklisting Teamware can immediately intervent by starting a "de-list" procedure.
This allows to mark the affected server as trustworthy on the blacklist and to reach removal from the list
in a short time.
Loopback address
Teamware has installed a special loopback address at major providers such as AOL which receives
important status emails in case of blacklisting. This accelerates contact with the provider and
avoid livelong support cases.
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