Need system admin with prior experience in configuring and optimizing postfix / dkim / spf etc.


I already paid someone to setup postfix and configure dkim, spf etc. for me but I have the feeling that there are still a lot of bugs and it is very slow and from time to time email service craches or email queue gets filled with emails...

So I would need someone to check everything out and verify everything is working as it is supposed to work, fix bugs if any found and optimize the configuration. Also make some consultation what else can be done for improving deliverability.

In addition I would like to know how many emails my server is sending each day and I would like to get an email with that information or a report each day (through cronjob).

Then since automatically dkim signing is working I always get the following error message when I want to send/receive emails from Outlook:

The server you are connected to is using a security certificate that cannot be verified.

The target principal name is incorrect.

Do you want to continue using this server?

I was told in order to solve this issue, I need to buy real ssl certificates and I did. The system admin who set everything up for me, installed a certificate for one domain and error message did not reoccur but he seemed to have problems to install the certificates for the other/multiple domains.

So the certificates for my other domains should also be installed.

Server is running with Debian.

If you need further information or have questions, let me know.

Skills: Linux, System Admin

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About the Employer:
( 10 reviews ) Berlin, Germany

Project ID: #2586408

16 freelancers are bidding on average $163 for this job


lets complete this project

$150 USD in 1 day
(621 Reviews)

Please check PM for details

$250 USD in 3 days
(131 Reviews)

Hi. That's my specialty. Please check PM.

$120 USD in 5 days
(216 Reviews)

I can help you with this

$110 USD in 1 day
(126 Reviews)

Hi I am a CISSP,RHCE,CCNA,MCSA,Linux+ and a CEH. I do have 7+ years experience in System Administration . I have experience in a high availability environment with 100+ servers and more than 500 000+ subscribers, I kno More

$100 USD in 3 days
(79 Reviews)

I can help you. Thank you.

$150 USD in 2 days
(124 Reviews)

I can setup / optmize it.

$250 USD in 0 days
(87 Reviews)

check my reviews and message to evaluate me

$130 USD in 30 days
(56 Reviews)

I have 6 years of working experience in Linux and other technologies. i am currently working on a same project. check pm for details.

$100 USD in 2 days
(6 Reviews)

Yes, Absolutely I can help you to solve your mail server problem.

$150 USD in 1 day
(5 Reviews)

Can do this right away..!!

$100 USD in 2 days
(9 Reviews)

Hello, please see a PMB

$100 USD in 2 days
(1 Review)

Please Check PMB. Thanks

$150 USD in 1 day
(2 Reviews)

Custom software development: w w w . The Administrator removed this message for containing contact details which breaches our Terms of Service . i o

$250 USD in 1 day
(0 Reviews)

Hi, Let me help you to solve the issue in your server. Having more than 3 years of experience in the hosing field.

$250 USD in 3 days
(0 Reviews)

Hi, i can rebuild your system from scratch to make it work perfect. To be honest is much easier and more recommended to make it from zero. It takes up to 3 days to have the sistem perfect without any kind of errors. More

$250 USD in 3 days
(0 Reviews)