Whether you're using a cloud-based email solution such as 365 or On-Premise exchange you should utilise an email deployment tool for Signatures.
Job Titles can be and should be set by HR
A signature is a sign-off from an employee of your company to and internal or external party. This job title of a signature If needed or not is like a business card where the receiving party can see the seniority and Role of the sender. Sometimes employees have changed their own job titles for various reasons and this is not picked up until it is too late. Signature software can integrate into Active Directory and grab this each time to standardise the signature per user. You can also create templates so specific users display or don't display their mobile phone numbers for privacy reasons.
Consistent Branding for Logo's and marketing updates
Whether you have changed your logo, or have some new exciting news to share with your new and existing customers a Signature is a great place to show this. Centralising your signature store means you can change the Signature in real time with business updates getting you new leads.
Consistent legal notes and disclaimers
Laws change all the time, and disclaimers are there to protect the company and person sending each email. The company should deploy these when necessary and keep them up to date with the click of a button to protect itself.
Make your signatures Mobile and Device Friendly
If you have created your signature in Word with your company logos sometimes the width of this will make the email UNREADABLE on mobile devices. With 20% of the internet traffic being mobile nowadays you want to make sure you have this covered
Make sure your emails do not get marked as Spam
We recently had a customer whos employee has created a LinkedIn Logo pointing to the companies linkedIn site to be more socially aware. Unfortunately the colleague sourced the image from an unreliable spam site and the companies email was being blocked at receiving mailservers due to this.