Hello. I was able to follow this through and through, and the result was identical as the video. I tested the "rcpt to:" to 2 actual email addresses, and nothing ever showed up - including the SPAM folder. Is that normal or did I miss something? Port 25 is open, forwarded, etc.
Thank you very much , exist in this course confire multiple domaines with providers smtps with one postfix server ? i dont knoz i will watch all ur course
it would appear that port 25 is blocked by my ISP as I'm not getting any of the telnet emails in any of my inboxes. I have also opened port 25 in my router.
Yes, its possible. The reason I wouldn't bother, which isn't necessarily a good reason not to bother I should add, is that I use Docker for portability, largely for deployments, so its often a great way to develop something you plan on moving around. For me, an email server isn't generally going anywhere, so I have never bothered containerising it!
So let me get this right. Once I put in telnet localhost 25 and get back Trying ::1...,Connected to localhost, is this telling me my port 25 smtp port is open correct?
I hope someone answers this. I got "OK's" every time I hit enter. I have even register and got my web site up and running before I did this. But trying it 3 times I never received any of my emails. So what is the problem?
Nope, telnet is a great tool for confirming ports are open, services are configured correctly, and its great for sending an email from the command line. There are other tools which do a similar thing. Telnet is as open as your network is configured to be.
Hi there, thanks for the great tutorials! When attempting to send to a hotmail.co.uk address, I get this in the mail.info log: Service unavailable, Client host [**.**.*.***] blocked using Spamhaus. I also get a similar problem when trying to to send to a gmail address. Has anyone else had this issue?
Hi, they are many reasons for being blocked. One of them is that you've been black listed. Don't panic, it's probably because your emails fail to meet required standards, you can unblack list yourself once you've solved the issue... which will probably come out of the wash when you've finished my course or go solo and get your emails up to scratch.
There is also mail and mutt, but telnet will help tell us what is going wrong and its used later in the course to verify IMAP authentication. You're right, there are alternatives.
@Raspberry Pi Coding In order to get my emails to send externally, I had to add: relayhost = mail..com in the ./postfix/main.cf file - However, it's taking roughly 15 minutes to reach it's destination. Any idea on how to have the email arrive instantly?
Edit: I have fixed my issue below, I can now send external mail. I have done the following; 1: Got my ISP to unblocked port 25 and open the same port on my home router and forward it to my Pi's IP 2: Added ISP relay address to /etc/postfix/main.cf = "relayhost = example.isp.com.au" 3: Created SASL password file in /etc/postfix/sasl_passwd to authenticate with relay server = "example.isp.com.au username:password" 4: Map it with "sudo postmap /etc/postfix/sasl_passwd" 5: Amended or/and Added the following lines in /etc/postfix/main.cf with; smtp_sasl_auth_enable = yes smtp_sasl_security_options = noanonymous smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_use_tls = yes smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt Only used "smtp" instead of "smtpd" and is working fine for me, now onto video 7 of the series. Original Message: When trying to send external emails, say to an Outlook account, I get "Relay Access Denied". I fixed this by adding my local IP (192.168.10.0/24) to the end of "mynetworks =" line in /etc/postfix/main.cf. This fix allows me to send external emails, but I don't receive it in my Inbox or Junk folder. My mail logs = "status=deferred (connect to outlook-com.olc.protection.outlook.com[104.47.18.225]:25: No route to host)" I can send internal emails with different users just fine. Thank you :)
GilbiousMaximus - On your #3: are you saying you create that new file, then in that new file you add one line that says: relay server = SomeAddressYourISPgivesYou username:password (of what? Btw)
@@thepyli username and password for your ISP's relay server. Generally, your username and password for your email account should work. The one line should look like this... mail.isp.com john.doe:mypassword
@@GilbiousMaximus - Thanks a million for your help. I discovered my ISP's relay servers to use. Just a couple more clarifying questions if you don't mind: 1. When I use my ISP's server as you indicated with: mail.isp.com followed by the username:password - are you saying to use the email account (which is usually the username) that your ISP provides? 2. When you said, "Only used "smtp" instead of "smtpd"" - Are you saying use "smtp" for the only the lines you listed: smtp_sasl_auth_enable = yes smtp_sasl_security_options = noanonymous smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_use_tls = yes smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt OR both... Edit the ALL additional lines in /etc/postfix/main.cf that contain "smtpd," for example, "smtpd_recipient_restrictions =" by changing it to "smtp_recipient_restrictions" Again, I truly appreciate your time as the information you provided allowed me helped me get where I needed to be server-wise. Thank you again.
Hello. I was able to follow this through and through, and the result was identical as the video. I tested the "rcpt to:" to 2 actual email addresses, and nothing ever showed up - including the SPAM folder. Is that normal or did I miss something? Port 25 is open, forwarded, etc.
I'm in the same boat at the moment. I am able to send internally, just not externally.
awesome content! thank you!
Where are the rest of the videos on this subject please?
Thank you very much , exist in this course confire multiple domaines with providers smtps with one postfix server ? i dont knoz i will watch all ur course
it would appear that port 25 is blocked by my ISP as I'm not getting any of the telnet emails in any of my inboxes. I have also opened port 25 in my router.
Yeah possibly, some do block it. You'll need to contact your isp to unblock it if that is the case im afraid.
In the series on hosting a website you used Docker. Isn't it possible to use Docker here also?
Yes, its possible. The reason I wouldn't bother, which isn't necessarily a good reason not to bother I should add, is that I use Docker for portability, largely for deployments, so its often a great way to develop something you plan on moving around. For me, an email server isn't generally going anywhere, so I have never bothered containerising it!
So let me get this right. Once I put in telnet localhost 25 and get back Trying ::1...,Connected to localhost, is this telling me my port 25 smtp port is open correct?
Do i need a already registered Domain so the Email will be sent because mine doesnt work but i also have an non-registraded Domain
I hope someone answers this. I got "OK's" every time I hit enter. I have even register and got my web site up and running before I did this. But trying it 3 times I never received any of my emails. So what is the problem?
is telnet necessary to work with mail server ? i would prefer to not open telnet to wide public for security resons of corz
Nope, telnet is a great tool for confirming ports are open, services are configured correctly, and its great for sending an email from the command line. There are other tools which do a similar thing. Telnet is as open as your network is configured to be.
Hi there, thanks for the great tutorials!
When attempting to send to a hotmail.co.uk address, I get this in the mail.info log:
Service unavailable, Client host [**.**.*.***] blocked using Spamhaus.
I also get a similar problem when trying to to send to a gmail address. Has anyone else had this issue?
Hi, they are many reasons for being blocked. One of them is that you've been black listed. Don't panic, it's probably because your emails fail to meet required standards, you can unblack list yourself once you've solved the issue... which will probably come out of the wash when you've finished my course or go solo and get your emails up to scratch.
@@Singleentity101 Thanks for reply, I will continue through the course!
For sending test email I suggest to use: sendemail, since this tool does not make all the typing errors 😊
There is also mail and mutt, but telnet will help tell us what is going wrong and its used later in the course to verify IMAP authentication. You're right, there are alternatives.
got "Relay access denied" when I do rcpt to: [email]
Same problem. Any one could you help us?
@Raspberry Pi Coding
In order to get my emails to send externally, I had to add: relayhost = mail..com in the ./postfix/main.cf file
- However, it's taking roughly 15 minutes to reach it's destination. Any idea on how to have the email arrive instantly?
Edit: I have fixed my issue below, I can now send external mail. I have done the following;
1: Got my ISP to unblocked port 25 and open the same port on my home router and forward it to my Pi's IP
2: Added ISP relay address to /etc/postfix/main.cf = "relayhost = example.isp.com.au"
3: Created SASL password file in /etc/postfix/sasl_passwd to authenticate with relay server = "example.isp.com.au username:password"
4: Map it with "sudo postmap /etc/postfix/sasl_passwd"
5: Amended or/and Added the following lines in /etc/postfix/main.cf with;
smtp_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_use_tls = yes
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
Only used "smtp" instead of "smtpd" and is working fine for me, now onto video 7 of the series.
Original Message:
When trying to send external emails, say to an Outlook account, I get "Relay Access Denied". I fixed this by adding my local IP (192.168.10.0/24) to the end of "mynetworks =" line in /etc/postfix/main.cf. This fix allows me to send external emails, but I don't receive it in my Inbox or Junk folder.
My mail logs = "status=deferred (connect to outlook-com.olc.protection.outlook.com[104.47.18.225]:25: No route to host)"
I can send internal emails with different users just fine.
Thank you :)
Well done working through this, nice to see a solid solution spelt out for others.
Well done working through this, nice to see a solid solution spelt out for others.
GilbiousMaximus - On your #3: are you saying you create that new file, then in that new file you add one line that says:
relay server = SomeAddressYourISPgivesYou username:password (of what? Btw)
@@thepyli username and password for your ISP's relay server. Generally, your username and password for your email account should work. The one line should look like this...
mail.isp.com john.doe:mypassword
@@GilbiousMaximus - Thanks a million for your help. I discovered my ISP's relay servers to use. Just a couple more clarifying questions if you don't mind:
1. When I use my ISP's server as you indicated with: mail.isp.com followed by the username:password - are you saying to use the email account (which is usually the username) that your ISP provides?
2. When you said, "Only used "smtp" instead of "smtpd"" - Are you saying use "smtp" for the only the lines you listed:
smtp_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_use_tls = yes
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
OR both...
Edit the ALL additional lines in /etc/postfix/main.cf
that contain "smtpd," for example, "smtpd_recipient_restrictions =" by changing it to "smtp_recipient_restrictions"
Again, I truly appreciate your time as the information you provided allowed me helped me get where I needed to be server-wise. Thank you again.