aaP_slewrate Hi, It seems that the SSL for a domain has been created on mail server (brand: R3). However, email clients report this: This is with Postbox. iPhone doesn't even allow me this, it will just not accept the certificate. Thank you Alex
aaPanel_Kern Hello, it should be a problem that mac and iphone cannot trust the certificate, it is recommended to use other trusted certificates aaP_slewrate
aaP_slewrate aaPanel_Kern So that means, that I have to buy a certificate for each domain? On my previous email server (hmailserver) I had only one master domain (mail.domain.com) which had a valid certificate, and all other domains used the master domain for IMAP. It seems that on aaPanel this is not possible? each domain must have each own mail.domain.com A record? Thanks Alex
aaP_slewrate Yes but: Can I use ONE master domain (mail.domain.com) which will be used for IMAP for all domains? This way, I only have to have ONE valid SSL certificate. Thanks Alex