Campaigns landing in spam
Authentication was never configured, or was configured for a provider the business stopped using. Fixing the records usually moves delivery within days.
Email is the only audience a business actually owns. No algorithm decides who sees it, and nobody can change the terms overnight. That makes deliverability the part worth getting right, and it is the part most setups skip.
Authentication first: SPF, DKIM, and DMARC configured and verified, a sending domain separated from the one staff use, and a warm-up if the domain is new. A beautiful campaign that lands in spam has a zero open rate no matter how it reads.
After that it is mostly about triggers rather than blasts. A message sent because someone did something specific outperforms a monthly newsletter, and it keeps working without anybody scheduling it.
Authentication was never configured, or was configured for a provider the business stopped using. Fixing the records usually moves delivery within days.
Replacing the monthly blast with four triggered messages does more, and none of them needs anyone to remember.
Sending to it cold damages the domain. Re-engagement and pruning first, then sending.

Discovery calls are free and usually last 30 minutes. We listen first, and we will tell you honestly if email marketing is the wrong thing to spend money on.