Mailbox providers
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What is the difference between a B2B hosted mailbox and a B2B filtering company?
Sending email campaigns to business addresses can be a very difference experience from sending to...
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Apple deliverability best practices
Service integration largely affects Apple Mail deliverability. For example, campaigns sent to a r...
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Apple overview
Apple, a U.S.-based mailbox provider (MBP), offers a free email service called iCloud Mail. iClou...
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Country Overview: Russia
Overview There are approximately 143 million people in Russia and, as of 2017, there are approxim...
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Yandex troubleshooting support information
Yandex troubleshooting support Make sure you follow sending best practices when sending to Yande...
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Yandex deliverability best practices
Yandex has fairly strict sending requirements in order for your email to reach the inbox. Followi...
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Yandex overview
Yandex is a mailbox and search engine provider based in Russia that has one of the most sophistic...
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Mail.ru troubleshooting support information
Mail.ru built most of its spam filter technology in-house and created its own proprietary bayesia...
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Cox overview
Cox Communications is a United States telecommunications provider with over 6 million customers. ...
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Mail.ru deliverability best practices
Having a good IP address and domain reputation is important to Mail.ru, so be sure to track your ...
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EarthLink overview
EarthLink is an Internet Service Provider (ISP) based in the United States with services includin...
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Mail.ru overview
The Russian webmail service, Mail.ru, was launched in 1998. With more than 100 million active ema...
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Terra troubleshooting support
Sending successfully to Terra and reaching the inbox is highly dependent on your sending reputati...
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Terra deliverability best practices
Sending successfully to Terra and reaching the inbox is highly dependent on your sending reputati...
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Terra overview
Terra Networks, S.A. (Terra) is a Spanish Internet multinational company with headquarters in Spa...
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Free troubleshooting support information
Free provides a postmaster website support page to help senders encountering delivery problems to...
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Free deliverability best practices
Free cares about your sending reputation as well as respecting their resources when making filter...
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Free overview
Free is one of the largest telecommunication companies in France and is a subsidiary of Iliad SA....
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Rackspace overview
Rackspace Technology is a cloud services and hosting solutions provider with over 140000 customer...
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Orange troubleshooting support information
Orange’s approach to fighting spam includes filtering on both the reputation of the sender and em...
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Orange deliverability best practices
Orange has strict consent rules that must be followed in order to send successfully to their cust...
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Orange overview
Orange (formerly France Telecom S.A.) is a global telecommunications company headquartered in Par...
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Verizon deliverability best practices and troubleshooting support
Verizon acquired AOL (2015) and Yahoo! (2017) and successfully merged email infrastructures in 20...
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Verizon overview
Verizon acquired AOL (2015) and Yahoo! (2017) and successfully merged email infrastructures in 20...
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BT Mail overview
BT is one of the world's largest providers of telecommunications services and solutions, with ope...
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Time Warner Cable (Road Runner) troubleshooting support information
TWC uses Cloudmark that factors in customer complaints, IP sending reputation and content in filt...
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Time Warner Cable (Road Runner) deliverability best practices
Time Warner Cable’s (TWC) goal for their email service is to ensure their customers receive email...
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Time Warner Cable (Road Runner) overview
Road Runner High Speed Online started in 1995 under the Time Warner Cable (TWC) company umbrell...
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AT&T, Bellsouth and SBC troubleshooting support information
Although AT&T uses the Verizon Media (AOL & Yahoo!) infrastructure, once email makes it through t...
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AT&T, Bellsouth and SBC deliverability best practices
AT&T, Bellsouth, and SBC use the Verizon Media (AOL & Yahoo!) email infrastructure to filter mess...