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Engineering

Tackling Greylisting In MailChannels Cloud

4 min read

Greylisting – a common anti-spam technique – presents a serious challenge for large email delivery services. Find out how we tackled greylisting.

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Engineering

STARTTLS Adoption Update

2 min read

In May 2013, Facebook published a detailed survey of Transport Layer Security encryption usage by the world’s email servers.

Read post: STARTTLS Adoption Update

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