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A curiosity: tool to watch the SMTP communication
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H Paul
Ranch Hand
Joined: Jul 26, 2011
Posts: 299
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Hi,
1. Tcpmon help us to watch the HTTP communication.
Is there a similar tool to watch the SMTP communication when we send an email? (A curiosity.)
2. I used Apache Common Email to send an email. I noticed when I used a given specific public wifi. It failed. Is this a network issue (security, permission, etc...)
For other public wifi. It's OK.
1M Thanks.
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Wouter Oet
Saloon Keeper
Joined: Oct 25, 2008
Posts: 2700
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With a tool such as WireShark you can view any internet communication.
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"Any fool can write code that a computer can understand. Good programmers write code that humans can understand." --- Martin Fowler
Please correct my English.
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H Paul
Ranch Hand
Joined: Jul 26, 2011
Posts: 299
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1. Wireshark downloaded, installed and saw many traffic/protocol. Still have to learn to use the tool to isolate and watch for mail related protocol.
2. In waiting, when I connected to attwifi, for example, the following command is OK (saw from other forum's threads)
>telnet smtp.googlemail.com 465
BUT when I connected to the troubled wifi, I got
>telnet smtp.googlemail.com 465
Connecting To smtp.googlemail.com...Could not open connection to the host, on port 465: Connect failed
(I still connected to Internet with no issue. )
Is the problem comes from the troubled wifi?
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subject: A curiosity: tool to watch the SMTP communication
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