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MithiWiki Home > ConnectXf Home > ConnectXf Administration > Configuration > Mails receiving slowly using POP3 service


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Troubleshooting
Product ConnectXf
Version All
Applies to Administrators
Level Advanced



POPS is taking lot of time to receive the mails

To check the time taken for pops use the following command on the server console:

time echo "quit" | openssl s_client -connect localhost:pop3s

The output will be like given below:

CONNECTED(00000003)
depth=0  /C=IN/ST=Tamilnadu/L=Chennai/O=mail.prodapt.com/OU=IT/CN=mail.prodapt.com/emailAddress=it.support@prodapt.com
verify error:num=18:self signed certificate
verify return:1
depth=0   /C=IN/ST=Tamilnadu/L=Chennai/O=mail.prodapt.com/OU=IT/CN=mail.prodapt.com/emailAddress=it.support@prodapt.com
verify return:1
---
Certificate chain
0 s:/C=IN/ST=Tamilnadu/L=Chennai/O=mail.prodapt.com/OU=IT/CN=mail.prodapt.com/emailAddress=it.support@prodapt.com
  i:/C=IN/ST=Tamilnadu/L=Chennai/O=mail.prodapt.com/OU=IT/CN=mail.prodapt.com/emailAddress=it.support@prodapt.com
---
Server certificate
-----BEGIN CERTIFICATE-----
MIICqzCCAhQCAQAwDQYJKoZIhvcNAQEEBQAwgZ0xCzAJBgNVBAYTAklOMRIwEAYD
VQQIEwlUYW1pbG5hZHUxEDAOBgNVBAcTB0NoZW5uYWkxGTAXBgNVBAoTEG1haWwu
cHJvZGFwdC5jb20xCzAJBgNVBAsTAklUMRkwFwYDVQQDExBtYWlsLnByb2RhcHQu
Y29tMSUwIwYJKoZIhvcNAQkBFhZpdC5zdXBwb3J0QHByb2RhcHQuY29tMB4XDTA5
MDIyNTA4NTU0NloXDTE0MDIyNDA4NTU0NlowgZ0xCzAJBgNVBAYTAklOMRIwEAYD
VQQIEwlUYW1pbG5hZHUxEDAOBgNVBAcTB0NoZW5uYWkxGTAXBgNVBAoTEG1haWwu
cHJvZGFwdC5jb20xCzAJBgNVBAsTAklUMRkwFwYDVQQDExBtYWlsLnByb2RhcHQu
Y29tMSUwIwYJKoZIhvcNAQkBFhZpdC5zdXBwb3J0QHByb2RhcHQuY29tMIGfMA0G
CSqGSIb3DQEBAQUAA4GNADCBiQKBgQDc6vEbu/8lr9fMLj6t19NlcaTEzL0ReQ1l
uKpv4GSuxAD7UBP4LQCPKL5mGc57E3s+WRPDN0MEg307fFT51w3mmzjVxhSt9LZs
SaefqaXRC7fRZYxm50YXBJKeAm5Lo0NXRUdVJAZp0zVl8RdXZ8a8GMhPLgPR7f5t
r8o785vHmQIDAQABMA0GCSqGSIb3DQEBBAUAA4GBAF37y7g+CbAySTRE8laZM8+Y
bZRLnIfsLuzKylb4hWFioXFBkO/Xcc6qAKD7JnmIELuD5xofbVwP3iAGznStnTs1
2sS6vXCPEbwc/ow0DPnTIyr7p+9FgPGIqy/cCNL9U4GeXDcxl9GPLP/PHRh0pflC
aaXgQ//jLkiEDrppMjze
-----END CERTIFICATE-----
subject=/C=IN/ST=Tamilnadu/L=Chennai/O=mail.prodapt.com/OU=IT/CN=mail.prodapt.com/emailAddress=it.support@prodapt.com
issuer=/C=IN/ST=Tamilnadu/L=Chennai/O=mail.prodapt.com/OU=IT/CN=mail.prodapt.com/emailAddress=it.support@prodapt.com
---
No client certificate CA names sent
---
SSL handshake has read 1251 bytes and written 340 bytes
---
New, TLSv1/SSLv3, Cipher is DHE-RSA-AES256-SHA
Server public key is 1024 bit
SSL-Session:
    Protocol  : TLSv1
   Cipher    : DHE-RSA-AES256-SHA
   Session-ID: 17E1F340F5F2854D89729B472DF840F806966BE17CA5210622690F055F809C59
   Session-ID-ctx:
   Master-Key: A9513E75E92E27000B3EB0D3E4F229D4FC48F69BEAC1E40E8AABFB9D14EC496B41ECBB664540CDED0E0C7EE8780530C1
   Key-Arg   : None
   Krb5 Principal: None
   Start Time: 1236417926
   Timeout   : 300 (sec)
   Verify return code: 18 (self signed certificate)
---
DONE
real    0m59.083s
user    0m0.016s
sys     0m0.004s


Now remove all the DNS server from

/etc/resolve.conf 

Check the command again

time echo "quit" | openssl s_client -connect localhost:pop3s

The time take will be like:

real    0m11.049s
user    0m0.016s
sys     0m0.004s