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Engineering

Using Transport Layer Security (TLS) With a Transparent SMTP Proxy

Transport Layer Security (TLS) is an encryption protocol that ensures the privacy of SMTP traffic exchanged between mail servers.

Best Practices

Important Open Source Software Should Be Regularly Audited

Curl’s recent security vulnerabilities is a reminder that many of the tools we rely on aren’t subject to thorough code inspections%%NEWLINE%%

Best Practices

Port 25: Why Keeping It Open Is Important

Many hosts who experience spam issues can be tempted to block port 25. However, this is merely a temporary solution to the problem.

Best Practices

Spam Traps Can Be Very Bad News for Your Sender Reputation

Avoiding spam traps is essential to maintaining a good sender reputation with ISPs and mailbox providers. But how do you avoid spam traps?

Best Practices

Hosting Your Own Email Might Not Be A Good Idea

Non-technical users should be aware of the risks involved in self-hosting and managing email — it's not as easy as you might think

Best Practices

How Do Email Complaint Feedback Loops Work?

Email Feedback Loops help organizations ensure that they’re only sending marketing emails to people that want to receive it.

Best Practices

Top SMTP Error Messages - June 2016

A list of the world's most popular SMTP response codes and what they mean.

Best Practices

Why Outgoing Spam Filtering Can And Should Be Done Transparently

Outgoing spam filtering is lawful and effective when implemented as a transparent SMTP filter. We explain why.

Corporate

MailChannels Named Top Tech Company In Rocket Builders' "Ready To Rocket" List

At MailChannels, we're big supporters of BC's tech community, and we're honoured to be included to this list. Congratulations to all the winners!

Engineering

Tackling Greylisting In MailChannels Cloud

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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