Am 11.10.2019 um 13:22 schrieb C. James Ervin via dovecot:
In setting up my new mail server, I am getting the following in the logs:
Oct 11 07:10:59 kumo dovecot[5704]: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=24.53.79.10, lip=172.26.12.90, *TLS handshaking: SSL_accept() syscall failed: Success*, session=<B9OokqCUD+UYNU8K>
Unless you meanwhile managed to solve your issue I see none from my side. Should be client side else.
# openssl s_client -connect 3.222.54.62:993 CONNECTED(00000003) depth=3 C = SE, O = AddTrust AB, OU = AddTrust External TTP Network, CN = AddTrust External CA Root verify return:1 depth=2 C = US, ST = New Jersey, L = Jersey City, O = The USERTRUST Network, CN = USERTrust RSA Certification Authority verify return:1 depth=1 C = GB, ST = Greater Manchester, L = Salford, O = Sectigo Limited, CN = Sectigo RSA Domain Validation Secure Server CA verify return:1 depth=0 OU = Domain Control Validated, OU = PositiveSSL, CN = kumo.kites.org verify return:1
Certificate chain 0 s:/OU=Domain Control Validated/OU=PositiveSSL/CN=kumo.kites.org i:/C=GB/ST=Greater Manchester/L=Salford/O=Sectigo Limited/CN=Sectigo RSA Domain Validation Secure Server CA 1 s:/C=GB/ST=Greater Manchester/L=Salford/O=Sectigo Limited/CN=Sectigo RSA Domain Validation Secure Server CA i:/C=US/ST=New Jersey/L=Jersey City/O=The USERTRUST Network/CN=USERTrust RSA Certification Authority 2 s:/C=US/ST=New Jersey/L=Jersey City/O=The USERTRUST Network/CN=USERTrust RSA Certification Authority i:/C=SE/O=AddTrust AB/OU=AddTrust External TTP Network/CN=AddTrust External CA Root 3 s:/OU=Domain Control Validated/OU=PositiveSSL/CN=kumo.kites.org i:/C=GB/ST=Greater Manchester/L=Salford/O=Sectigo Limited/CN=Sectigo RSA Domain Validation Secure Server CA 4 s:/C=GB/ST=Greater Manchester/L=Salford/O=Sectigo Limited/CN=Sectigo RSA Domain Validation Secure Server CA i:/C=US/ST=New Jersey/L=Jersey City/O=The USERTRUST Network/CN=USERTrust RSA Certification Authority 5 s:/C=US/ST=New Jersey/L=Jersey City/O=The USERTRUST Network/CN=USERTrust RSA Certification Authority i:/C=SE/O=AddTrust AB/OU=AddTrust External TTP Network/CN=AddTrust External CA Root
Server certificate -----BEGIN CERTIFICATE----- MIIF+DCCBOCgAwIBAgIRAPRR/DgRC9DMCNA+aXXAWsAwDQYJKoZIhvcNAQELBQAw gY8xCzAJBgNVBAYTAkdCMRswGQYDVQQIExJHcmVhdGVyIE1hbmNoZXN0ZXIxEDAO BgNVBAcTB1NhbGZvcmQxGDAWBgNVBAoTD1NlY3RpZ28gTGltaXRlZDE3MDUGA1UE AxMuU2VjdGlnbyBSU0EgRG9tYWluIFZhbGlkYXRpb24gU2VjdXJlIFNlcnZlciBD QTAeFw0xOTEwMTEwMDAwMDBaFw0yMDEwMDkyMzU5NTlaMFIxITAfBgNVBAsTGERv bWFpbiBDb250cm9sIFZhbGlkYXRlZDEUMBIGA1UECxMLUG9zaXRpdmVTU0wxFzAV BgNVBAMTDmt1bW8ua2l0ZXMub3JnMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB CgKCAQEAviqQmCB6So+K7jj8CIBb7MWZgnI6Ha8zvV1wbwo/giUSdOaVQ9OEg7NA yEP24RcnEDi8j9WnJyazMhthMWssGEVJVmaqg11nnJ4GzN36uJJ/b3tsXupKMgQt P3iR8gtuB5gVdH1t1jc6M4WORnhNL/k41eRDLv2zJZjxy4089SnAJn2uR2xiYSo0 Jr7HIuQcyISFOpvy9Qq2KLmkZxghEEnNHraFx0S5qlrj62DBa5TTPx1PCe43dXyn Tmid4TfTua700xt7daYS2UQc9GSi0vEDj0XAvY1+GPiSkmrgNGa7DahZ7pywUiq0 5i3lUNW0ZHWAPkQrCdWbgslmf6QBvwIDAQABo4ICiTCCAoUwHwYDVR0jBBgwFoAU jYxexFStiuF36Zv5mwXhuAGNYeEwHQYDVR0OBBYEFBiQDmP7BWEXR/MzWmB7Xnvi RyUoMA4GA1UdDwEB/wQEAwIFoDAMBgNVHRMBAf8EAjAAMB0GA1UdJQQWMBQGCCsG AQUFBwMBBggrBgEFBQcDAjBJBgNVHSAEQjBAMDQGCysGAQQBsjEBAgIHMCUwIwYI KwYBBQUHAgEWF2h0dHBzOi8vc2VjdGlnby5jb20vQ1BTMAgGBmeBDAECATCBhAYI KwYBBQUHAQEEeDB2ME8GCCsGAQUFBzAChkNodHRwOi8vY3J0LnNlY3RpZ28uY29t L1NlY3RpZ29SU0FEb21haW5WYWxpZGF0aW9uU2VjdXJlU2VydmVyQ0EuY3J0MCMG CCsGAQUFBzABhhdodHRwOi8vb2NzcC5zZWN0aWdvLmNvbTAtBgNVHREEJjAkgg5r dW1vLmtpdGVzLm9yZ4ISd3d3Lmt1bW8ua2l0ZXMub3JnMIIBAwYKKwYBBAHWeQIE AgSB9ASB8QDvAHYAB7dcG+V9aP/xsMYdIxXHuuZXfFeUt2ruvGE6GmnTohwAAAFt uCloHAAABAMARzBFAiEAqj3ij29JbFtVe1zPiWxe0kHeqBausXJxHTEeF91WbIAC IE+21ysv6L9xRKqdJGztqwNCjMkDCnvFuqGiIxnXJU4jAHUAXqdz+d9WwOe1Nkh9 0EngMnqRmgyEoRIShBh1loFxRVgAAAFtuCloFAAABAMARjBEAiBpLGo6/j/q3101 QmCQqAdTed7ZGdskysaHKDEDfmsGEQIgWH1U74bH8ajaWqpcJ+PCngLG49BJOYv3 WYrWq+9Hc9EwDQYJKoZIhvcNAQELBQADggEBAJH4RYgEfcVP8oP0Xa3HeC3u8EdG XnvFjYSGTcEoaZXJOlAB8i7ZwzWUwkn6+A6LPQjkPf4yOJhP4iHYuYsKG4IHfSlJ 9DKy7X9kHgd3DiYPQ7j1FrOChL1/Zav+pr3M9N0CxCuveY/Z04W9DcqiychlCKAx 5jX28jkmAd+MFp8DB29vHqgbqJ/Dkbx8cnAbm4eragXZ3in+xACsfSkgfwkS4djG aKP6Jx0dIlMtsKaQVwMNOSMapcGe2tFmrV8WR9uByo6wGOAu1KWu6YrhQTwjSoNP 9RWUpMPNAtrM69r+kkUc3cdE+SrJHzKwnivigKuzNkxiQO7sxJ2ria06vpU= -----END CERTIFICATE----- subject=/OU=Domain Control Validated/OU=PositiveSSL/CN=kumo.kites.org issuer=/C=GB/ST=Greater Manchester/L=Salford/O=Sectigo Limited/CN=Sectigo RSA Domain Validation Secure Server CA
No client certificate CA names sent Peer signing digest: SHA512 Server Temp Key: ECDH, P-384, 384 bits
SSL handshake has read 9689 bytes and written 447 bytes
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES256-GCM-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-GCM-SHA384 Session-ID: D70E66B01EDEAAF0C03188CF83AFCA71EAA6A3D56F0FA1F13281374E5E29506F Session-ID-ctx: Master-Key: 1B1283187F21E890095893F8A3308A277F5DAB34471EF25DAC2135C08D6631ABA13035DCA24658399181CB42465F968E Key-Arg : None Krb5 Principal: None PSK identity: None PSK identity hint: None TLS session ticket lifetime hint: 7200 (seconds) TLS session ticket: 0000 - 84 e1 ef 09 30 b9 bc 58-e6 36 0f dd 32 7b 10 03 ....0..X.6..2{.. 0010 - 03 5d 1a a2 d8 a0 dc 3b-36 ee b8 76 da 21 ff 0e .].....;6..v.!.. 0020 - 30 29 e0 d4 19 fd 1e 84-09 c7 f5 24 fa 8d 7c 02 0).........$..|. 0030 - 77 b0 9d a9 8a 51 16 0a-6e 33 d8 90 87 ca a3 a9 w....Q..n3...... 0040 - 87 ed 0e 3c 05 95 06 f3-e1 70 86 8a 3f 4a b5 98 ...<.....p..?J.. 0050 - da 53 7c dd 8c 77 c9 eb-3a 13 6e 77 d4 db 3c 0f .S|..w..:.nw..<. 0060 - 2c 53 4d d2 f9 fa 31 15-e7 98 91 36 74 9e 4e 92 ,SM...1....6t.N. 0070 - 7e 35 b1 73 a6 43 df e8-3e d4 4c 82 c3 1f cc 12 ~5.s.C..>.L..... 0080 - a7 aa 7a 8a 36 6d 39 d6-1b 0d 93 52 c8 f6 24 23 ..z.6m9....R..$# 0090 - 48 f5 f4 c3 17 fa 2d 3e-e5 ab 48 a1 9f 4c 48 f9 H.....->..H..LH.
Start Time: 1570825213
Timeout : 300 (sec)
Verify return code: 0 (ok)- OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=LOGIN] Dovecot (Ubuntu) ready. QUIT DONE
Alexander