我想從Outlook中獲取smtp證書，所以我可以將其導入到我的weblogic服務器，但我在獲取證書時遇到問題。如何獲得Outlook smtp證書？
對於imap證書，我沒有任何問題獲得證書。
在我的linux終端中，我使用下一個命令。
openssl s_client -connect outlook.office365.com:993
openssl s_client -connect smtp.office365.com:587
前景端口和服務器列表 
ESMTP使用延遲啓動TLS會話（通過STARTTLS動詞）。
您需要將-starttls smtp添加到您的命令中。
$ openssl s_client -connect smtp.office365.com:587 -starttls smtp
CONNECTED(00000003)
depth=2 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert Global Root CA
verify return:1
depth=1 C = US, O = DigiCert Inc, CN = DigiCert Cloud Services CA-1
verify return:1
depth=0 C = US, ST = WASHINGTON, L = Redmond, O = Microsoft Corporation, CN = outlook.com
verify return:1
---
Certificate chain
0 s:/C=US/ST=WASHINGTON/L=Redmond/O=Microsoft Corporation/CN=outlook.com
i:/C=US/O=DigiCert Inc/CN=DigiCert Cloud Services CA-1
1 s:/C=US/O=DigiCert Inc/CN=DigiCert Cloud Services CA-1
i:/C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert Global Root CA
---
Server certificate
-----BEGIN CERTIFICATE-----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C817LzyN8/rRPvffCAgz7pcKXWPbJ0Nqodtnq3EjQSNYuTNSjYa5ehNZ2LqeGuF0
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VR0fBIGFMIGCMD+gPaA7hjlodHRwOi8vY3JsMy5kaWdpY2VydC5jb20vRGlnaUNl
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HSAERTBDMDcGCWCGSAGG/WwBATAqMCgGCCsGAQUFBwIBFhxodHRwczovL3d3dy5k
aWdpY2VydC5jb20vQ1BTMAgGBmeBDAECAjB8BggrBgEFBQcBAQRwMG4wJQYIKwYB
BQUHMAGGGWh0dHA6Ly9vY3NweC5kaWdpY2VydC5jb20wRQYIKwYBBQUHMAKGOWh0
dHA6Ly9jYWNlcnRzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydENsb3VkU2VydmljZXND
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H6bxwklntH0f4CCuh4g/XmpemDYx4Ffcwo+eWboyOM2cPUT0YtkqTRx1OFYDF7FL
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Uc+2QXkhHeUDL0TApOSgo++CILBEcOegpaiDlqkXBaRDNnTZyoQhl3vnJ/uVQ87l
emTkXreuX/Sd
-----END CERTIFICATE-----
subject=/C=US/ST=WASHINGTON/L=Redmond/O=Microsoft Corporation/CN=outlook.com
issuer=/C=US/O=DigiCert Inc/CN=DigiCert Cloud Services CA-1
---
No client certificate CA names sent
Client Certificate Types: RSA sign, DSA sign, ECDSA sign
Requested Signature Algorithms: RSA+SHA512:ECDSA+SHA512:RSA+SHA256:RSA+SHA384:RSA+SHA1:ECDSA+SHA256:ECDSA+SHA384:ECDSA+SHA1:DSA+SHA1
Shared Requested Signature Algorithms: RSA+SHA512:ECDSA+SHA512:RSA+SHA256:RSA+SHA384:RSA+SHA1:ECDSA+SHA256:ECDSA+SHA384:ECDSA+SHA1:DSA+SHA1
Peer signing digest: SHA1
Server Temp Key: ECDH, P-384, 384 bits
---
SSL handshake has read 3765 bytes and written 566 bytes
---
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-SHA384
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
Protocol : TLSv1.2
Cipher : ECDHE-RSA-AES256-SHA384
...
---
250 SMTPUTF8
DONE