2048-bit DKIM: the key does not fit in a 255-character TXT
The 255 limit is per string, not per record. fold -w 255 + quotes, all in the same TXT; the verifier concatenates them. Route 53 and Cloud DNS require it; Cloudflare does it for you.
The 255 limit is per string, not per record. fold -w 255 + quotes, all in the same TXT; the verifier concatenates them. Route 53 and Cloud DNS require it; Cloudflare does it for you.