I'm having problems with msmtp accepting SSL certificate for my email
provider.
$ msmtp --serverinfo --host=gator1860.hostgator.com --tls=on
--tls-certcheck=off
SMTP server at gator1860.hostgator.com
(gator1860.hostgator.com[50.97.97.38]), port 25:
gator1860.hostgator.com ESMTP Exim 4.77 #2 Wed, 30 May 2012 11:57:39
-0500
TLS certificate information:
Owner:
Common Name: *.hostgator.com
Organizational unit: Domain Control Validated
Issuer:
Common Name: PositiveSSL CA 2
Organization: COMODO CA Limited
Locality: Salford
State or Province: Greater Manchester
Country: GB
Validity:
Activation time: Tue 29 May 2012 01:00:00 BST
Expiration time: Tue 30 May 2017 00:59:59 BST
Fingerprints:
SHA1: 76:00:DF:3A:B4:AE:70:D9:D2:6D:8A:FE:5C:15:63:1A:F2:64:D0:AC
MD5: 6F:FF:FB:B6:51:B1:F2:D3:2C:B4:26:34:AD:40:B2:7B
Capabilities:
SIZE 52428800:
Maximum message size is 52428800 bytes = 50.00 MiB
PIPELINING:
Support for command grouping for faster transmission
STARTTLS:
Support for TLS encryption via the STARTTLS command
AUTH:
Supported authentication methods:
PLAIN LOGIN