[sylpheed:34562] SSL_Connect() failed with error 5

[Anton Shepelev]

Hello all,

Sylpheed  has  stopped  working with out MS Exchange
server suddenly:

    * creating IMAP4 connection to ex-07.git.ru:143 ...
    [11:39:13] IMAP4< * OK The Microsoft Exchange IMAP4 service is ready.
    [11:39:13] IMAP4> 1 CAPABILITY
    [11:39:13] IMAP4< * CAPABILITY IMAP4 IMAP4rev1 LOGINDISABLED STARTTLS IDLE NAMESPACE LITERAL+
    [11:39:13] IMAP4< 1 OK CAPABILITY completed.
    [11:39:13] IMAP4> 2 STARTTLS
    [11:39:13] IMAP4< 2 OK Begin TLS negotiation now.
    ** LibSylph-WARNING: SSL_connect() failed with error 5, ret = 0 (error:00000000:lib(0):func(0):reason(0))

    ** LibSylph-WARNING: [11:40:13] Could not establish IMAP connection.

    ** Could not establish IMAP connection.

My  Gmail  IMAP  account  still  works  pretty  well
though.

Please, help.
Anton