Tunning Mail server postfix on EC2 Instance

I have an email server Postfix and Dovecot installed on a EC2 instance in AWS.

I can send emails when connected to the webmail, but cant send mail through any PC or mobile phone email client.

This is the error I get on the log:

addr x.x.x.x(my client ip address) listed by domain [url removed, login to view] as [url removed, login to view]

May 22 00:07:44 mail postfix/postscreen[4296]: DNSBL rank 3 for [x.x.x.x]:53706

I need some who help me solve this issue and set up secure but functional policies.

Evner: Amazon Web Services, DNS, E-mailhåndtering, Linux

Se mere: configure postfix bulk mail server, postfix bulk mail server, setting postfix postgresql mail server, linux, email handling, freebsd postfix postgresql mail server, postfix dovecot mail server, mail postfix server control panel, postfix server mail dovecot, postfix virtual mail setup, ubuntu server mail server configuration, linux postfix send mail administrator, ubuntu server mail server, webmin postfix unknown mail transport error, ubuntu server mail configuration, mails postfix server, setup postfix server webmin, postfix virtual mail mysql

Om arbejdsgiveren:
( 8 bedømmelser ) Brasil, Mexico

Projekt ID: #14098700

Tildelt til:

$10 USD in 10 dage
(0 bedømmelser)

9 freelancere byder i gennemsnit $31 på dette job


hello, raza here, I am system and network administrator with more than 10 year experience . Currently I am working as network and system administrator for a local organization on regular basis. I am available right now Flere

$30 USD in 0 dage
(39 bedømmelser)

I have over 15 years system administration experience with a number of distributions of linux / unix and windows server, working for a large number of blue chip companies here in the UK. I now run my company (https://w Flere

$55 USD på 1 dag
(11 bedømmelser)

i can hadnle this task. i got experience with mail servers and linux servers. let me know if u want my assistance

$45 USD på 1 dag
(20 bedømmelser)

Hi. This kind of problem is because your server is listed into blacklist. There are severals ways for improve your security and, eventually, dont be blocked by blacklist server, foe example, dkim and spf records. Flere

$25 USD in 2 dage
(6 bedømmelser)

Hi There, I am a Unix / Linux Systems Administrator with over 20 years experience. I have just finished a project setting up postfix and dovecot and I can fix your problem quickly. do you have an SSL certifica Flere

$25 USD på 1 dag
(2 bedømmelser)

hi sir this is shanmugam I have a more than 5 years experience as Linux administrator I saw your post if you give me this project I will enable sasl authentication method it's more secure your mail server and you will Flere

$25 USD på 1 dag
(6 bedømmelser)

A proposal has not yet been provided

$25 USD på 1 dag
(0 bedømmelser)

Hey We are a team of Technical Developers and have got expertise in such stuff. Ping me if you are looking for a quick resolution

$35 USD på 1 dag
(0 bedømmelser)