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Error during creation of new mail system for MailPlus on Synology
I'm trying to install MailPlus Server on my Synology NAS but constantly get an error during setup. I can't find anything in logs etc. so it's a blackbox failing. In earlier tries it mentioned something...
View ArticleSending Email Directly From A Mail Server Terminal, How To Manually Specify...
Trying to send an email to my gmail account via the command line. I can issue the following command in terminalmail -v -s "test" xxxxx@gmail.com -- -f ooooo@mydomain.comThe problem is, the server I'm...
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How to setup synology mailserver for outlook
I have installed the Synology Mailserver (not MailPlus) and would like to receive mails using IMAP.I've created the following DNS recordssinnema.me NS ns1.isource.nlsinnema.me NS...
View ArticleGuarantee email deliverability
We are using Zoho Mail in our company and so far the experience was great. But recently we have faced an issue of not getting our emails delivered to the new company we are now working with. One of the...
View ArticleHow to upgrade the Exim to version “4.92” on Ubuntu 18.04 server?
A critical vulnerability (CVE-2019-10149) was found in Exim mail server. It allows to execute some code on victim's server with root privileges. This vulnerability affects versions from 4.87 to 4.91.I...
View ArticlePostfix setup for Raspberry Pi 3B+ (non-dedicated mail server, fantasy FQDN)
Problem: Create a contact form that lets users of a website submit messages that are sent to an email. Use php's mail() and Postfix. Having trouble using/understanding Postfix? The setup must be...
View ArticleProxmox Mail Gateway 6.0-4 free not quarantining spam
I installed Proxmox Mail Gateway 6.0-4 free as an antispam server for a mail server. It works fine, but except one thing. In the Proxmox Mail Gateway has an option Spam Quarantine. It is empty. I do...
View ArticleMultiple passwords for mail accounts used by multiple users?
Are there any mail servers that allow multiple users to access the same mail account, but each of the users with their own, specific password?The goal is that access to a shared mail account can be...
View ArticleTransferring a working system drive from a linux server to new metal
I have a single drive linux mail server. I recently purchased a new server, can I move the hard-drive from the old system to the new machine and bootup? Since the kernel adds drivers during bootup, any...
View ArticleHow does a mail user agent know the name of the sender, if the email address...
I received an email, and the sender's name is User X, but the email address is noreply@example.com. How is this possible? Are there any extra information that is sent in an email?
View Article"This email is from an external mail server etc."
On many (but not all) of my incoming email messages, I see a message saying:This email is from an external mail server, be judicious when opening attachments or linkMy mail server is - unfortunately -...
View ArticleUnclear about postfix and hostname in ubuntu
I need to preface this by saying I am in no means an expert with linux or servers. I have a digitalocean droplet that I am using as a webserver for a couple of domains. I am looking to implement a...
View ArticleCannot connect to Google Compute Engine instance via SSH
i am new to google cloud,i just deployed my first instance it was working fine till yesterday, i used last time to set email server using this tutorial email server, but now i am unable to connect ssh...
View ArticleResolving DNS & MX Records
I am new to the community and I really need your assistance to resolve some complicated issues with DNS/MX Records.My client's website is designed and hosted in Wix with mydomain.com and pointing to...
View ArticleRunning a Home Mail Server - What steps can I take to perform diagnostics?
I have been wanting to run my own mailserver at home for some time now. I don't necessarily absolutely need such a thing but it would be very useful to have as I am working running my own business now...
View ArticleCertbot won't generate ssl for my mail-prefixed domains
I recently developed my first full-stack website, and I attempted to get it out there with a vps. My problem is, I can't seem to generate an ssl certificate for one of my domains. The...
View ArticlePostfix and Dovecot Virtual Mailboxes
I have been setting up a home mail server on my Raspberry Pi using Dovecot and Postfix. This is all very new to me, and I've struggled my way through.Now I'm on to trying to setup virtual mailboxes,...
View ArticlePossible to configure my VPS as a proxy of mail sent by another mail server?
I have a NAS which deployed with a full-featured mail server, but I cannot send mail to most of the other mailboxes because its IP is always blocked from sending mail, and the mail sent will be...
View ArticleForward outgoing mails to another port on home PC then to VPS and send it...
Hi I recently noticed it seemed my home ISP had banned me from sending through port 25 (I could send mails when my mail server just launched though). I tried to telnet to services like smtp.gmail.com...
View ArticleSending and receiving mail from/to personal SMTP server
I'm trying to setup a SMTP server from my Windows machine. What I'm trying to do is only for learning experience; I won't actually be using the server regularly. I've installed hMailServer on my...
View ArticleOpenSSL connection to an imap server over explicit port works, but fails on...
I have a mail server to which I'm connecting from a ruby application using protocol IMAP.But I get an error in rails console:Loading dev environment (Rails 7.0.4)irb(main):001:0> @connection =...
View ArticleSync cPanel mail server to Microsoft Exchange Server
we have Microsoft exchange server 2019 locally and have a cPanel for our mail organization account, we need both server we want exchange server send and receive from cPanel server via pop3/smtp or...
View ArticleMultiple MX DNS entries for mail server backup / redundancy?
I have set up MX records for my domain as follows:0 mail1.mydomain.com.10 mail2.mydomain.com.20 mail1.backupmxserver.com.30 mail2.backupmxserver.com.where entries 0 and 10 are for mail servers with...
View ArticleWarning with NO consequences: postfix/trivial-rewrite[]: warning:...
I get the below warning in the mail log file.postfix/trivial-rewrite[]: warning: relay_domains lookup failureThe mail server is working well without any issues. What can this error mean?Running the...
View ArticleMail Server and Google Mail
IssueI have just set up an email server using Postfix, POP3 and IMAP, following the instructions listed here:https://help.ubuntu.com/community/PostfixBasicSetupHowtoSending/receiving mail locally on my...
View ArticleDoes SORBS (DNSBL) contains domain names?
I’m researching SORBS (Spam and Open Relay Blocking System) and its function in DNS-based Blackhole Lists (DNSBLs).My question is straightforward: Is SORBS limited to storing only IP addresses, or does...
View ArticleHow to correctly use Postfix virtual aliases?
All emails sent to my email server arrive in the inbox of root, regardless of the user specified in user@domain.com.My virtual file in /etc/postfix/virtual is:query1@domain1.com...
View ArticleNew user does not have a Postfix `Maildir` directory?
I am attempting to have multiple user accounts, each capable of receiving their own mail in their own Maildir directory. When I add a new user account however, no Maildir directory structure is...
View ArticleHow to block spam email by subject on Zimbra server
How can I block spam email by subject?I tried following this blog post, but it doesn't work.It uses custom_header_checks and define some parameters, I did try such parameters and restart the services...
View ArticleFatal error (bad field count) while configuring Postfix
I'm using this tutorial to configure a mail server using postfix, dovecot and mysql.While configuring Postfix I have to uncomment the following lines and then restart Postfix with service postfix...
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