220-mail.udb88.com ESMTP
250-mail.udb88.com
250-SIZE 10240000
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 CHUNKING

nginx

HTTP/1.1 200 OK
Server: nginx
Date: Mon, 10 Feb 2025 03:40:44 GMT
Content-Type: text/html
Content-Length: 16481
Last-Modified: Mon, 18 Mar 2024 15:35:56 GMT
Connection: keep-alive
Vary: Accept-Encoding
ETag: "65f85f5c-4061"
Accept-Ranges: bytes

+OK Dovecot ready.
+OK
CAPA
TOP
UIDL
RESP-CODES
PIPELINING
AUTH-RESP-CODE
USER
SASL PLAIN LOGIN
.

* OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ AUTH=PLAIN AUTH=LOGIN] Dovecot ready.
* CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ AUTH=PLAIN AUTH=LOGIN
A001 OK Pre-login capabilities listed, post-login capabilities have more.
* ID ("name" "Dovecot")
A002 OK ID completed.
A003 BAD Error in IMAP command received by server.
* BYE Logging out
A004 OK Logout completed.

220 mail.udb88.com ESMTP
250-mail.udb88.com
250-PIPELINING
250-SIZE 10240000
250-ETRN
250-AUTH PLAIN LOGIN
250-AUTH=PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250 CHUNKING

HTTP/1.1 200 OK
Date: Thu, 30 Jan 2025 02:52:18 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
Server: RainLoop
X-XSS-Protection: 1; mode=block