Лог всегда такой:
10.09.2015, 12:33:42: IMAP - Connecting to IMAP server imap.gmail.com on port 993
10.09.2015, 12:33:43: IMAP - Initiating TLS handshake
>10.09.2015, 12:33:43: IMAP - Certificate S/N: 6EACFA2B217C7C44, algorithm: RSA (2048 bits), issued from 8/26/2015 5:51:58 PM to 11/24/2015, for 1 host(s): imap.gmail.com.
>10.09.2015, 12:33:43: IMAP - Owner: "US", "California", "Mountain View", "Google Inc", "imap.gmail.com".
>10.09.2015, 12:33:43: IMAP - Issuer: "US", "Google Inc", "Google Internet Authority G2".
>10.09.2015, 12:33:43: IMAP - Root: "US", "GeoTrust Inc.", "GeoTrust Global CA"
10.09.2015, 12:33:43: IMAP - TLS handshake complete
10.09.2015, 12:33:43: IMAP - Connected to IMAP server (imap.gmail.com)
>10.09.2015, 12:33:43: IMAP - Gimap ready for requests from 83.59.106.18 g144mb26927040wme
10.09.2015, 12:33:44: IMAP - Authenticating (user: "dwelssss
@gmail.com ", method: "LOGIN"
...
10.09.2015, 12:33:44: IMAP - Server reports error. The response is: NO WEBALERT
https://accounts.google.com/ContinueSignIn?sarp=1&scc=1&plt=AKgnsbui4F9N16XtTwGCek9NBOn24kriFspQqEHV... w7DgNGtaIMQzd1m-7WZ3LtEpnB2am1sFF3CEAnVTgusal9t6Mb7pWiNOLnKd1rdQVv2QA-JIeKq9SA53rhd8MweZ9YF7_NSWxfahyc6jAMkdWSUmV5TvfS3gBqfyZzu7rW
hXyYWlbfjrBkZ4Jat5kX0WXqye4xIx8jY3rGg-QlVa95mOdU4wwLKTxrJf-mXvArV6xCQ Web login required.
!10.09.2015, 12:33:44: IMAP - Please log in via your web browser:
https://support.google.com/mail/accounts/answer/78754 (Failure)
...