All Questions
25 questions
1
vote
2
answers
563
views
What is `postfix/smtps/smtpd` in my log file?
I know that postfix/smtpd is for incoming mails, smtp for outgoing mails. But I do see in my logfile several entries with postfix/smtps/smtpd. What is this for?
Feb 22 10:57:55 mx postfix/smtps/smtpd[...
- 41
0
votes
3
answers
2k
views
How does postfix intercept root's mail?
Quite a number of apps e.g. cron etc will send mail to root if there are errors.
I saw some tutorials which involve installing postfix + quite a bit of configuration to have them forwarded to gmail or ...
- 295
0
votes
0
answers
137
views
Why do mail clients try to access my UBUNTU 20.04 Postfix (v3.4.13) outgoing mail server
I run a private mail server, however it is found by non associated mail clients that try to access the outgoing server smtp ports. Why and how does this happen? Is it hackers that look for machines ...
- 1
0
votes
1
answer
4k
views
Postfix Send-Only SMTP Server domain name configuration
I found 2 ways of sending mails from Linux/bash :
through a service , like sSMTP, which implies using an external SMTP server, like gmail
through Postfix server, which configures the Linux server to ...
- 133
0
votes
1
answer
2k
views
530,5.7.0SMTP server error: MAIL FROM command failed Detail: Authentication Required
PHP Mail error with the message:
530,5.7.0SMTP server error: MAIL FROM command failed Detail: Authentication Required
Following are the key sections of my PHP Script.
new PHPMailer(true)
Host as '...
- 1
0
votes
4
answers
2k
views
Kmail not sending mail
I am asking this here because I could not find a solution anywhere on the web.
KMail can currently receive my email but will not send any (either to mailing lists or to a regular address)
The error it ...
- 458
1
vote
1
answer
391
views
How to configure nullmailer to work with mailchimp?
As my title said i have some problem with configuration of nullmailer.
Basicaly I have been following this website.
I have made an account on Mailchimp - where I have send succesfully the test mail. ...
- 121
0
votes
1
answer
2k
views
Forward "local mails" to external SMTP server
I have a standalone 18.04 server just for running a simple LAMP website. Sometimes when I log in to the server I get notified that I have mail (like cron/at job outputs), and then I read them using ...
- 131
2
votes
0
answers
416
views
postfix relay SMTP oulook.com
I have a Ubuntu 14.04.5, and I'm trying to config the postfix relay an external SMTP with [smtp-mail.outlook.com]:587.
I tried to search online and did some changes, but it still not working.
Here ...
0
votes
1
answer
500
views
Postfix / Dovecot / MySQL / Ubuntu 16.04 - Receiving via IMAP, but not sending
I've reached the point where I think I've read every post/article on this and am stuck. I'm relatively new to Ubuntu, and Linux in general, but I've been trying to tackle one problem at a time.
The ...
0
votes
1
answer
920
views
SendMail 503 error Ubuntu ["Unrecognized host name gmail.com."]
Unrecognized host name gmail.com.
503 5.0.0 Need RCPT (recipient)
This error if i send mail in any email *@gmail.com
How do I enable sending mail to all addresses?
news@ovz1:~$ nslookup gmail.com
...
0
votes
2
answers
1k
views
How to tell whether any smtp server like postfix, ssmtp is already installed on Ubuntu 16.04?
I have moodle 3.1 set up on Ubuntu 16.04 minimal version. Moodle is unable to send any email and errors are pointing to smtp configuration.
The mail notifications from moodle worked by default in dev ...
- 31
1
vote
0
answers
823
views
How to white list postfix smtp senders
My mail server (postfix, ubuntu, courier) got compromised by spammers that sent plenty of dummy mails to many recipients,
The spammers used two different ways:
using real domain on my server but ...
- 868
2
votes
1
answer
806
views
Postfix Outgoing Email Authentication
I have a VPS that I'm using as a webserver and an email server. I have an issue with postfix. It's not asking for a password on outgoing email from an unauthorized domain.
This is a telnet call from ...
- 21
2
votes
1
answer
6k
views
How to configure nullmailer to work with gmx
Last time I used postfix, and it was a mess until everything was configured to send my root-mail to my gmx-address .. however in the end it worked.
This time I wanted to prevent that mess by using ...
- 385
13
votes
2
answers
41k
views
How to change default FROM address for mail command using sSMTP?
I have installed:
sudo apt-get install ssmtp
sudo apt-get install mailutils
When I use command:
echo "something" | mail -s "testing email" [email protected]
The generated email have From field set ...
- 453
2
votes
1
answer
9k
views
Can't send mail
I can't seem to figure out how to get my server to send out an email. I've installed postfix for a send-only server, and every time I run mail -s "hello world" [email protected], I get at ...
- 1,139
0
votes
1
answer
1k
views
How can I redirect all mails of my smtp server on only one adress mail (using roundcube)?
I have installed postfix/courier to send and receive mails.
I use roundcube like webmail to watch it.
I have configured postfix with mysql DB, and create [email protected] address. There is ...
- 129
0
votes
1
answer
109
views
Send e-mails from a server, preventing from being blocked by anti-spam [closed]
I have a domain that points to server A. There is an 'a' entry in the DNS table of this server pointing to a server B. My website visitors will see the page hosted in the server B, not A. MX entries ...
1
vote
1
answer
3k
views
Postfix SMTP not available from external network
I'm trying to setup an SMTP server using Postfix. I already have virtual mailboxes and a Dovecot IMAP server running (and working). I can mail [email protected] and see the mail coming in with an IMAP client. ...
user125111
1
vote
1
answer
675
views
MTA questions about POSTFIX, outlook,,smtp, pop, etc
So this is a pretty noob question. I have a linux server that rocks postfix. We've been using it as our MTA for years. There are a few computers that run outook, one thunderbird, and a bunch of ...
- 103
1
vote
3
answers
4k
views
How can I change EXIM4 config from warn on no reverse DNS to actively rejecting mails with no reverse DNS
By default EXIM4 only warns about mails with no reverse DNS. I need to block and actively reject mail which has no reverse DNS. I am willing to accept that it's possible that some legit mail will be ...
- 31
7
votes
2
answers
9k
views
Easiest way to setup a SMTP server to receive mail?
I want to setup a SMTP server to receive all mails.
I have only found mail sending software so far (like postfix).
But I want to have software to make the server being able to receive mails.
Bonus ...
- 171
2
votes
1
answer
4k
views
SMTP server to deliver ALL mail to user@localhost
I'd like to configure an SMTP MTA to accept all mail addressed to any domain and deliver it to my local user account.
It would be very useful for debugging mail sent in some code I'm working on. I'll ...
- 133
3
votes
5
answers
3k
views
How can I set up an authenticated encrypted SMTP server? [closed]
I'd like to set up authenticated, encrypted SMTP on my remote Ubuntu server, how do I do that?
It's just a personal server, so I'd like a cheap option, i.e. not buying SSL certs - self-signed will ...
- 153