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Cannot connect to smtp.office365.com

#27809
Posted: 01/02/2014 06:42:21
by David Fowle (Standard support level)
Joined: 12/08/2011
Posts: 8

My program uses your TElSMTPClient to make secure (SSL/TLS) connections to SMTP servers. This works for google, yahoo and many others but NOT for smtp.office365.com

I believe that this server is rejecting my own "self signed" certificate. Has any one had a similar experience?
#27810
Posted: 01/02/2014 06:47:39
by Vsevolod Ievgiienko (Team)

Thank you for contacting us.

Quote
This works for google, yahoo and many others but NOT for smtp.office365.com

Could you clarify if you get any exception or error message. Did you try our sample project? Does the problem occur with it?

Quote
I believe that this server is rejecting my own "self signed" certificate. Has any one had a similar experience?

Do you use a client self-signed certificate?
#27811
Posted: 01/02/2014 06:49:11
by Eugene Mayevski (Team)

Set Versions property of the client to include ONLY SSL3. This should help, at least it did help other users.


Sincerely yours
Eugene Mayevski
#27817
Posted: 01/02/2014 08:32:32
by David Fowle (Standard support level)
Joined: 12/08/2011
Posts: 8

Dear Eugene,

Yes, restricting TELSmtpClient->Versions to SSL3 only works just fine. You have just made a sale for me.

Thank you for your superb and timely support!

David Fowle

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