I have a private linux vps and want to monitor it by sending email when memory or process usage is high. Is there any free service to send email ? (solution like Sendinblue are requiring profesionnel account) Other method to monitor vps are welcome too. Answer I’ve used HetrixTools and was satisfied wit…
Tag: smtp
Using Sendmail from an external server
I have a server with a webapp and a mail server (who use sendmail to route mails). We need to migrate the webapp to an auto-scaling schema, so, I can’t have the mail server in there, so, I’m thinking on leaving the mail server right where it is now. So, to send mails I have different alternatives,…
DKIM key not valid – Bad RSA signature
I have setup DKIM on a Ubuntu 14.04 machine using opendkim and postfix. I generated the RSA keypair and updated the TXT record. When testing the settings at any DKIM tester like www.mail-tester.com or www.dkimvalidator.com, I get errors like “result = fail, bad RSA signature”. Here is an example m…
Ubuntu dockerfile – mailutils install
I am installing mailutils via a dockerfile on an ubuntu image. I do this via: RUN apt-get install -y mailutils However, on this line I get the following: When I do exactly the same thing with a Debian image I do not get this option. I use the -y prefix to handle all the yes/no installation questions when usin…