Problems sending mail in PROXMOX 6.4-9

[gsanz]

Hello , I am working with PROXMOX 6.4-9 and cannot send mails by proxmox.
I have configured the following parameters:

/etc/postfix/main.cf

relayhost = smtp-host.domain.com:587
smtp_use_tls = yes
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_tls_CApath = /etc/ssl/certs
smtp_sasl_security_options = noanonymous, noplaintext
smtp_sasl_tls_security_options = noanonymous


/etc/postfix/sasl_passwd
smtp.gmail.com:587 cau@pavapark.com:****************

postmap /etc/postfix/sasl_passwd
chown root:root /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db
chmod 0600 /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db


I execute the following comand for sending a mail and it is not executed:
echo "test mail from proxmox" | mail -s test gsanz@pavapark.com

I have the following values in /var/log/mail.info and have the following output:

Jul 22 11:00:25 pvpavapark postfix/error[47302]: 3779BBC61CA: to=<gsanz@pavapark.com>, relay=none, delay=4640, delays=4620/20/0/0, dsn=4.4.3, status=deferred (delivery temporarily suspended: Host or domain name not found. Name service error for name=smtp.gmail.com type=MX: Host not found, try again)



ANy idea???

 

[Stoiko Ivanov]

on a hunch - the message:

Name service error for name=smtp.gmail.com type=MX: Host not found,

indicates that smtp.gmail.com does not have an MX record (which it really does not) - you want to connect directly to smtp.gmail.com - for this you need to use '[smtp.gmail.com]' (with square brackets)

see some of the tutorials online - e.g.:
https://www.linode.com/docs/guides/...ail-and-google-workspace-on-debian-or-ubuntu/

I hope this helps!

EDIT: please also consider upgrading to PVE 7 soon - as PVE 6 will soon be EOL

 

[gsanz]

I have a problem : when I execute ping smtp.gmail.com the server does not respond. I have seen the firewall files and no rules block the port 587.
Any idea ??
Regards
Gorka

 

[Stoiko Ivanov]

I have a problem : when I execute ping smtp.gmail.com the server does not respond.

maybe it's a DNS issue - check the contents of your /etc/resolv.conf - it needs to have a working DNS server listed

I hope this helps!