Question

Problems doing telnet to gmail and hotmail.

Asked by: jonathan_otero

I'm writing an email client application it's basically the same as do telnet to an smtp server. I have tried to do telnet to send some emails to my account but I cant. When I tried to telnet to send a message to my gmail account I receive a message that says please enter the 'starttls' command and when I enter it, it seems like the smtp server it's waiting for something else and nothing happens. When I tried to do telnet to send an email to my hotmail account everything runs well but then when I check my inbox the email isn't there. When I tried to do the same with my yahoo account it works. I want to know how is the correct way to to telnet to gmail and hotmail smtp servers.

I am using the following smtp server address and port;
SmtpServerAddress          Port
smtp.gmail.com                   587
mx1.hotmail.com                  25
mx2.hotmail.com                  25

Thanks in advance

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Asked On
2007-07-16 at 15:45:20ID22700149
Tags

telnet

,

gmail

Topics

SSH / Telnet Software

,

Simple Mail Transfer Protocol (SMTP)

,

SendMail Email Server

Participating Experts
3
Points
125
Comments
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Answers

 

by: knightrider2k2Posted on 2007-07-16 at 16:02:58ID: 19500572

I am not 100% sure but I think when you use port 587/TLS you need a TLS certificate on the sending machine.
Hotmail is probably rejecting your email because you are on a residential internet connection or you don't have a reverse dns setup.

 

by: sopoleniusPosted on 2007-07-17 at 07:13:52ID: 19505018

you can you port 465 with SSL

 

by: dworltonPosted on 2007-07-17 at 07:37:37ID: 19505274

These gmail servers might work with port 25 instead of port 587:
gmail-smtp-in.l.google.com
alt1.gmail-smtp-in.l.google.com
alt2.gmail-smtp-in.l.google.com
gsmtp163.google.com
gsmtp183.google.com

and you might try these additional hotmail servers:

mx3.hotmail.com
mx4.hotmail.com



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