CODEWITHSUNDEEP
amazon-web-services
Ian Warburton
Ian Warburton

Reputation: 15686

Can't telnet to Amazon SES server

I run...

telnet email-smtp.us-east-1.amazonaws.com 25

And it says...

421 Timeout waiting for data from client

What am I missing?

I've validated a sender address and sent a test email, which arrived.

Upvotes: 0

Views: 698

Answers (2)

Ian Warburton
Ian Warburton

Reputation: 15686

Because my SES service is sandboxed, I needed both the sender and recipient to be the verified email address.

From the top of the "Sending Statistics" page in the console...

Your Amazon SES account has "sandbox" access in region US East (N. Virginia). With sandbox access you can only send email to the Amazon SES mailbox simulator and to email addresses or domains that you have verified. To be moved out of the sandbox, please request a sending limit increase.

Upvotes: 1

Beef Techie
Beef Techie

Reputation: 16

That works fine. You should probably check if outgoing traffic to port 25 is blocked in your network environment. Many organizations block that outgoing traffic for security reasons.

You can check that port with nmap. Here's what it looks like from a network where traffic is permitted:

$ nmap email-smtp.us-east-1.amazonaws.com -p 25 | grep '25/tcp'
25/tcp open  smtp

And from a network where it is not permitted:

$ nmap email-smtp.us-east-1.amazonaws.com -p 25 | grep '25/tcp'
25/tcp filtered smtp

Upvotes: 0

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